sustainable grape and wine · 2019-03-22 · sustainable grape and wine production in the context...

Sustainable grape and wine production in the context of climate change

Co-Convenors

N. OLLAT

I. GARCIA de CORTAZAR-ATAURI

J.M.TOUZARD

Bordeaux-France, April 10-13, 2016

Bordeaux Sciences Agro

1, cours du Gal De Gaulle, Gradignan

33(0)5 57 57 59 01, [email protected]

mailto:[email protected]

Sustainable grape and wine production in the context of climate change, Bordeaux-France, April 10-13, 2016 Page 1


CONTENTS Scientific Committee page 3

Organising Committee page 3

Welcome message page 4

Organizers page 6

Partners page 7

Symposium program page 9

Poster presentation page 13

Abstracts :

General opening lecture page 17

Session “Climatic modelling at different scales”:

Oral page 18

Poster page 24

Session “Impacts of climate change”:

Oral page 32

Poster page 44

Session “Ecophysiology for climate change”:

Oral page 59

Poster page 66

Session “Adaptation to climate change”:

Oral page 90

Poster page 105

Session “Perception and adaptability of climate change by the actors”:

Oral page 115

Poster page 130

Author index page 138


Scientific Committee Nathalie Ollat Bordeaux, France Jean-Marc Touzard Montpellier, France Inaki Garcia de Cortazar-Atauri Avignon, France Serge Delrot Bordeaux, France Kees van Leeuwen Bordeaux, France Eric Gomès Bordeaux, France Hervé Quénol Rennes, France Eric Giraud-Héraud Paris, France Philippe Darriet Bordeaux, France Eric Duchêne Colmar, France Eric Lebon Montpellier, France Jean-Marie Sablayrolles Montpellier, France Philippe Lagacherie Montpellier, France Christian Gary Montpellier, France Gregory Jones Ashland, Oregon, USA Hans Schultz Geisenheim, Germany Valérie Bonnardot Rennes, France Fernando Zamora Tarragona, Spain Jorge Tonietto Bento Gonçalves, Brasil Albert Strever Stellenbosch, South Africa Amber Parker Christchurch, New Zealand Franck Lecocq Paris, France

Organising Committee Nathalie Ollat Bordeaux Kees van Leeuwen Bordeaux Catherine Chabirand Bordeaux Catherine Thioulouse Bordeaux Philippe Vivin Bordeaux Cécile Thibon Bordeaux Laure de Rességuier Bordeaux Elisa Marguerit Bordeaux Ghislaine Hilbert Bordeaux Agnès Destrac Bordeaux Stéphanie Péres Bordeaux

In case you have any problem during the symposium, please contact : 33(0)5 57 57 59 01 33(0)6 77 63 89 24


Bordeaux, 2016, the 15th of March Dear colleagues,

The wine industry, more than any other crop industries, needs to adapt to climate change. Given the socio-economic impact of wine production, the specific influence of climate on viticulture and wine quality, and the key issues of localization and innovations in this industry, it is worthwhile to explore not only the impacts of climate change on vine and wine but also the current and future adaptation strategies. Depending on the viticultural area under consideration, adaptation obviously raises distinct scientific issues. In all cases, however, it is clear that effective adaptation strategies will require a combination of different disciplines, technologies and approaches in both natural and social sciences.

Resonate this context, we are pleased to welcome you in Bordeaux under the auspices of the INRA ACCAF Meta-Program (Adaptation to Climate Change for Agrosystems and Forestry, projects LACCAVE and PERPHECLIM) to share common knowledge base on climate change issues, as well as gathering data, defining adaptation strategies and providing decision rules to address the critical issue of climate change adaptation for the wine industry. We hope you will get interesting scientific exchanges and unforgettable memories of this stay in Bordeaux. We did our best for that purpose.

Have a pleasant congress !

Nathalie OLLAT Iñaki GARCIA de CORTAZAR-ATAURI Jean-Marc TOUZARD


The INRA metaprogramme on Adaptation of Agriculture and Forests to

Climate Change (AAFCC)

T. Caquet

1, N. Bréda

2, J.-P. Amigues

3, C. Gascuel

4, K. Chalvet-Monfray

5, P. Debaeke

6, J.-M.

Touzard7, J.-F. Soussana

8

1INRA, UAR 1275 Ecology of Forests, Grasslands and Freshwater Systems Division,

Champenoux, France 2INRA, UMR 1137 INRA-Université de Lorraine "Forest Ecology and Ecophysiology-EEF",

Champenoux, France 3INRA, UMR 1081 INRA-CNRS-Université Toulouse I “Laboratoire d’Economie des

Ressources Naturelles-LERNA”, Toulouse, France 4INRA, UMR 1069 INRA-Agrocampus Ouest “Soil, Agro and hydroSystem-SAS”, Rennes,

France 5INRA, UR 346 “Animal Epidemiology-EPI-A” Route de Theix, Saint Genès Champanelle,

France 6INRA, UMR 1248 INRA-INPT “Agroecologies Innovations Ruralities-AGIR”, Castanet-

Tolosan, France 7INRA, UMR 0951 INRA-CIRAD-Montpellier SupAgro, “Innovation”, Montpellier, France

8INRA, Collège de Direction Paris, France

The metaprogramme on Adaptation of Agriculture and Forests to Climate Change (AAFCC) has

been launched by the French Institute for Agricultural Research in 2011. It aims at coordinating,

promoting and integrating the research activities to overcome the scientific and societal barriers

that could restrict adaptation. This proactive and pluridisciplinary strategy involves cooperation

with French and foreign academic and socioprofessional actors. It should ensure rapid results and

progress, for example in multi-criteria assessment of adaptation options. Favouring the dialogue

between disciplines, AAFCC provides a framework for the various research projects on

adaptation of agriculture and forests to climate change. Discipline-related skills in human and

social sciences, agronomy, ecology, genetics, ecophysiology, animal sciences, economy and

modelling are mobilised to cover the range of questions raised by adaptation to climate change.

The chosen strategy focuses on integrated approaches at the sector or territorial level. The issues

and general objectives of the programme can globally be ordered according to the increasing

response times of the systems, from short- to long-term, and the intensity and 'active' nature of the

adaptation: from palliative or support actions, to innovation and technical or collective

organisational breakthroughs. Such breakthroughs require strong innovations and a thorough

socio-economic assessment.

AAFCC is fully in line with the European Joint Programming Initiative on “Agriculture, food

security and climate change”, initiated to enhance coordination of national research programmes.

Research projects address annual and perennial crops, livestock, forests, biodiversity or water and

soil resources. AAFCC has also promoted training of young scientists through PhD grants and

postdoctoral fellowships. Since 2011, AAFCC has supported more than 25 national research

projects and international actions and networks. It supports various European-level initiatives

through funding of some ERA-NETs. It also supports international (for example cooperative

projects with India or south Mediterranean countries) or global (for example ensemble crop

modelling) projects. International actions increase the range of climate conditions and model

species under investigation. Considering the issues at stake, international cooperation is

undoubtedly, along with pluridisciplinarity, the most important issue in this domain. This is the

reason why AAFCC supports various European-level initiatives and international or global

projects in addition to national projects. The metaprogramme also supports, in the framework of

an action led with Allenvi, the formalization of the specifications for and the implementation of a

portfolio of adaptation services at a national scale, based on products coming from agro-hydro-

climate modelling chains.

.


Organizers

INRA Centre de Bordeaux-Aquitaine UMR Ecophysiology and Functional Genomics of Grapevine Research Center of Bordeaux - University of Bordeaux - Bordeaux Sciences Agro 210 chemin de Leysotte 33 882 Villenave d'Ornon France Website : http://www6.bordeaux-aquitaine.inra.fr/egfv/

ISVV -Institute of Vine and Wine Sciences 210 chemin de Leysotte 33882 Villenave d'Ornon France Website : http://www.isvv.univ-bordeauxsegalen.fr/fr/

University of Bordeaux 351 Cours de la Libération, 33400 Talence France

Bordeaux Sciences Agro 1 cours du Général de Gaulle 33175 Gradignan Cedex France Website : http://www.agro-bordeaux.fr/

Life-ADVICLIM Laboratory LETG-Rennes-COSTEL Université de Haute Bretagne - Rennes 2 Place du recteur Henry le Moal 35043 Rennes France Website : http://www.adviclim.eu/fr/

Under the patronage of :

Organisation Internationale de la Vigne et du Vin 18 rue d'Aguesseau 75008 Paris France Website: http://www.oiv.int/oiv/cms/index

European Association of Wine Economists 10, rue Fraternité 66190 Collioure Website: http://www.euawe.org/

http://www6.bordeaux-aquitaine.inra.fr/egfv/

http://www.isvv.univ-bordeauxsegalen.fr/fr/

http://www.agro-bordeaux.fr/

http://www.adviclim.eu/fr/

http://www.oiv.int/oiv/cms/index

http://www.euawe.org/


Acknowledgments : we are grateful to the below mentioned organizations which supported the organization of the congress

SFR Biologie Intégrative Structure Fédérative de Recherche en Biologie Intégrative et Ecologie Campus INRA de Bordeaux - 71 avenue Edouard Bourlaux - CS 20032 - 33882 Villenave d'Ornon cedex France Website: http://www6.bordeaux-aquitaine.inra.fr/sfr-bie

LabEx COTE Université de Bordeaux Website: http://cote.labex.u-bordeaux.fr/

Investissement d'Avenir Commissariat général à l’investissement Hôtel de Cassini 32, rue de Babylone 75007 Paris 01.42.75.64.43 Website: http://investissement-avenir.gouvernement.fr

IdEx Bordeaux Initiative d’excellence de l’Université de Bordeaux 166 cours de l'Argonne 33000 Bordeaux Programme financé par l’ANR – ANR No.–10–IDEX-03-02 Website: http://idex.u-bordeaux.fr/fr/

Région Aquitaine - Limousin - Poitou-Charentes 14, rue François de Sourdis 33077 Bordeaux Cedex Website: http://laregion-alpc.fr/

Département de la Gironde 1 Esplanade Charles de Gaulle CS 71223 33074 Bordeaux Cedex Website: http://www.gironde.fr

Bordeaux Métropole Esplanade Charles de Gaulle 33076 Bordeaux cedex Website: http://www.bordeaux-metropole.fr/

Conseil Interprofessionnel du Vin de Bordeaux 3, cours du XXX juillet 33000 Bordeaux Website: http://www.bordeaux.com/fr

http://www6.bordeaux-aquitaine.inra.fr/sfr-bie

http://cote.labex.u-bordeaux.fr/

http://investissement-avenir.gouvernement.fr/

http://idex.u-bordeaux.fr/fr/

http://laregion-alpc.fr/

http://www.gironde.fr/

http://www.bordeaux-metropole.fr/

http://www.bordeaux.com/fr


Conseil des vins de St Emilion 14 Rue Guadet 33330 Saint-Émilion France Website: http://www.vins-saint-emilion.com/

Cap Sciences Hangar 20, Quai de Bacalan 33300 Bordeaux Tél. 05 56 01 07 07 Fax. 05 57 85 93 81 Website: http://www.cap-sciences.net/

Montpellier Supagro Institut des Hautes Etudes de la Vigne et du Vin 2 place Pierre Viala 34060 Montpellier Cedex 02 France Website: http://www.supagro.fr/web/ihev/

FranceAgrimer 12 rue Henri Rol-Tanguy TSA 20002 93555 Montreuil cedex France Website: http://www.franceagrimer.fr/

CASDEN Caisse d'Aide Sociale De l'Éducation Nationale 50 Boulevard George V 33077 Bordeaux Cedex Website: http://www.casden.fr/

BPACA Banque Populaire Aquitaine Centre Atlantique 10, Quai de Queyries 33 072 BORDEAUX CEDEX Website: http://www.bpaca.banquepopulaire.fr/

http://www.vins-saint-emilion.com/

http://www.cap-sciences.net/

http://www.supagro.fr/web/ihev/

http://www.casden.fr/

http://www.bpaca.banquepopulaire.fr/portailinternet/Pages/Default.aspx


SYMPOSIUM PROGRAM

Sunday, the 10th of April CAP Sciences - Hangar 20 - Quai de Bacalan - 33300 Bordeaux 17h00 Beginning of registration

18h00 Opening ceremony

18h30 J.F Soussana, France Climate change, a challenge for agriculture

18h50 N. Ollat, J.M. Touzard, I. Garcia de Cortazar-Atauri

Laccave : a research program about the adaptation to climate change of the french wine industry

19h00 Alain Rousset, Chairman of the Aquitaine-Limousin-Poitou Charentes regional council - Representants of Conseil Interprofessionel du Vin de Bordeaux and of the organising institutions (INRA, ISVV, Bordeaux Sciences Agro)

19h30 Cocktail

Monday, the 11th of April Bordeaux Sciences Agro - 1 cours du Général De Gaulle - 33170 Gradignan

8h00 Registration and poster installation

8h30 The convenors Few words about the symposium

9h00 Introduction lecture Pr G. Jones, USA The State of the Climate: Trends, Projections, and Relationships to Viticulture and Wine Production

Page 17

session 1

Chairwoman V. Bonnardot Climatic modelling at different scales

9h30 Keynote speaker Pr A. Sturman, New Zealand

The application of high-resolution atmospheric modelling to weather and climate variability in vineyard regions

Page 19

10h00 1 I. Garcia de Cortazar-Atauri, France

Assessment of future climatic conditions in French vineyards. Consequences for defining adaptation strategies

Page 20

10h15 2 R. Le Roux, France Nested scale approach to characterize climate aspect of vineyard terroirs in a context of climate change

Page 21

10h30 3 A. Soret, Spain Climate predictions for vineyard management

Page 22

10h45 4 A. Nesbitt, UK Impacts of recent climate change and weather variability on UK viticulture - combining weather and climate records with producers’ perspectives

Page 23

11h00 Poster presentation

11h10

Pause

session 2-1

Chairman P. Lagacherie Impacts of climate change

11h30 5 H. Fraga, Portugal Climate change impacts on viticultural yields in Europe using the STICS crop model

Page 33

11h45 6 M. Hofmann, Germany Climate change, water budget and grapevines in Germany

Page 35


12h00 7 E. Edwards, Australia Multi-seasonal effects of warming and elevated CO2 on the physiology, growth and production of mature, field grown, Shiraz grapevines

Page 36

12h15 8 S. Zito, France Powdery mildew evolution in cool climate regions in response climate change: The example of Burgundy

Page 37

12h30 9 F. de Herralde, Spain Potential changes in water deficit and phenology of grapevine under climate change conditions in NE Spain: A modeling approach to watershed level

Page 38


13h00 Lunch

session 2-2

Chairman B. Bois Impacts of climate change

14h30 10 Y. Wohlfahrt, Germany Elevated CO2 concentration: Impact on growth and grape quality of Vitis vinifera cv. Riesling and Cabernet Sauvignon for two accompanied vintages

Page 39

14h45 11 S. Marchand, France The 2003 vintage, an anticipation of future Bordeaux vintages in a context of climate change?

Page 40

15h00 12 U. Leibar, Spain Grapevine nutritional status under different soils and future expected climate conditions

Page 41

15h15 13 J. Zhu, France Simulating the effect of climate change on berry composition using whole plant model

Page 42

15h30 14 MC. Ramos, Spain Phenology variability, and predictions under climate change scenarios, of Cabernet Sauvignon and Tempranillo cultivated in the Ribera del Duero DO

Page 43

15h45 Pause


session 4-1

Chairman E. Giraud-Héraud Perception and adaptability of climate change by the

actors

16h15 15 P. Aigrain, France Lessons from a foresight exercise on the French wine industry under climate change

Page 117

16h45 16 G. Pickering, Canada Climate Change adaptation requires integrated, transdisciplinary research across the value chain: a case study of the Ontario Grapevine and Wine Research Network

Page 118

17h00 17 MC. Pichery, France Climate Change and economic challenge strategies for vinegrowers, winemakers and wine estates

Page 119

17h15 18 C. Foss, UK Climate change and sustainability in English wine production

0

17h30 19 A. Strever, South Africa Sustainable wine production in South Africa within the context of climate variability

Page 121

17h45 20 E. Neethling, France Assessing local climate vulnerability and winegrowers’ adaptive processes in the context of climate change

Page 122

18h00 21 J. Gautier, France The french wine AOC and the challenge of climate change

Page 123

18h30 Departure by bus to the Hotel de Region, Bordeaux downtown

19h00 Reception by the Aquitaine Council

20H30 Free evening


Tuesday, the 12th of April

session 5

Chairwoman A. Parker Ecophysiology for climate change


8h30 Keynote speaker Pr H. Le Treut, France

Climate change : from global to local issues

9h00 22 L. Torregrosa, France Grapevine and climate warming: Duravitis program opens new breeding strategies for temperature adaptation

Page 60

9h15 23 A. Coupel-Ledru, France A combination of phenotyping, genetic and physiological approaches to guide breeding for efficient water use in grapevine

Page 61

9h30 24 T. Scholasch, France Predicting the effects of drought and climate change on the composition and extractability of flavonoids in Cabernet Sauvignon

Page 62

9h45 25 J. Considine, Australia Summer and autumn, not winter, matter in dormancy of the grapevine

Page 63

10h00 26 E. Marguerit, France How do rootstocks control scion water use efficiency?

Page 64

10h15 27 C. Delmas, France Will grapevine pathogens adapt to climate warming? Temperature reaction norms of life-history traits in grapevine downy mildew

Page 65


10h40 Pause

session 3-1

Chairman A. Strever Adaptation to climate change

11h00 Keynote speaker Pr H.R. Schultz, Germany

Issues to be considered for strategic adaptation to climate evolution

Page 91

11h30 28 Pr C. van Leeuwen, France

Modified grape composition under Climate Change conditions requires adaptations in the vineyard

Page 92

11h45 29 E. Forrestel, USA Projections of Suitable Wine Growing Regions and Varieties: Adaptation in Space or Place?

Page 93

12h00 30 F. Vinatier, France How to translate narrative scenarios in landscape dynamics: Application to the introduction of irrigation in vineyards

Page 94

12h15 31 F. Alves, Portugal Vineyard drought adaptation in the Douro demarcated region

Page 95

12h30 32 E. Delay, France Cooperative winery can be a major actor to adapt viticulture locally?

Page 96

12h45 33 G.Teil, France Climate change and adaptation: Alsace and Loire Valley vintners’ challenging point of view

Page 97

13h00

Lunch

14h00

Departure for technical visit in St Emilion

Field visits, Château visit and Wine Tasting Variability in climate and topology within a producing area : a way to adapt ?

19h00 Gala dinner in St Emilion


Wednesday, the 13th of April

session 3-2

Chairwoman F. de Herralde Adaptation to climate change

8h30 34 P. Vivin, France Process-based models for analysing grapevine genotype adaptation to climate change: issues and challenges

Page 98

8h45 35 E. Duchêne, France How can grapevine genetics contribute to the adaptation to climate change?

Page 99

9h00 36 J. Tardaguila, Spain New plant phenotyping technologies in a changing climate

Page 100

9h15 37 J.M. Sablayrolles, France

How to adapt winemaking practices to modified grape composition under climate change conditions?

Page 101

9h30 38 L. Santesteban, Spain Severe trimming and enhanced competition of laterals as a tool to delay ripening in Tempranillo vineyards under semiarid conditions

Page 102

9h45 39 T. Dufourcq, France Should water supply by irrigation be soon a technique to manage aromatic potential of Colombard in South-Western France Gascony vineyard?

Page 103

10h00 40 A. Parker, New Zealand Canopy manipulations to delay ripening: A case study for Pinot noir and Sauvignon blanc

Page 104

10h15 poster presentation

10h25

Pause

session 4-2

Chairman P. Darriet Perception and adaptability of climate change by the

actors

10h45 Keynote lecture Pr . J.M Gil, Spain Does alternative choice experiment formats matter to elicit preferences and willingness to pay?

Page 116

11h15 41 L. Charlier, France Climate change: issues and actions for the Bordeaux wine industry

Page 124

11h30 43 A. Ugaglia, France Adaptation Strategies of Bordeaux's winemakers to face climate change

Page 126

11h45 44 J. Boyer, France Adaptation Strategies to Climate Change in the French wine industry : The role of networks connecting wine producers and researchers

Page 127

12h00 45 A. Fuentes, France Is global warming desired by wine consumers? Page 128

12h15 46 J. Rochard, France Reducing the impact of greenhouse gases on wine sector : situtation in France and approach by the OIV

Page 129

12H45 Concluding talk T. Caquet, France The INRA metaprogramme on Adaptation of Agriculture and Forests to Climate Change (AAFCC)

Page 5

13h00 Farewell communication

The convenors

13h30 Lunch


POSTER PRESENTATION

Posters Sustainable grape and wine production in the context of climate change

Name, Country Title Page

Session 1 Climatic modelling at different scales

1 M. Eveno, France Atmospheric circulation patterns and local weather types: a combined study of

climate variability in Saint Emilion vineyards Page 25

2 N. Fontes, Portugal High-resolution agrometeorological observations to assess impact on grape

yield and harvest date Page 26

3 M. Mota, France Variability of grapevine phenology in Swiss vineyards bordering the Geneva

Lake : influence of temperature and local atmospheric circulation Page 27

4 H. Quénol, France Shifts in climate suitability for wine grape growing in the Cotnari (Romania)

winegrowing region as effect of climate change Page 28

5 L. de Rességuier,

France Spatial temperature variability and distribution at local scale in Saint Emlion

and Pomerol. Page 29

6 G. Sgubin, France The future of the viticulture in Europe under discordant climate scenarios: the

VINTAGE project Page 31

Session 2 Impacts of climate change

7 L. Allamy, France Identification of « dried fruits » molecular markers found in Merlot and

Cabernet-Sauvignon grapes and red wines Page 45

8 R. Biasi, Italy Climate change in a Mediterranean grape-wine growing area: understanding

variation in varietal phenology, berry maturation and health Page 46

9 B. Bois, France Climate vs grapevine pests and diseases worldwide: The first results of a global

survey Page 47

10 N. Cortesi, Spain Grape sustainability in western South America: present climate assessment and

climate change impact evaluation Page 48

11 E. Delay, France CeLL, an agent based model for exploring spatial heterogenity influence of

climat change on Lobesia botrana development Page 49

12 J. Drappier, France HEAT BERRY: sensitivity of berries ripening to higher temperature - Grape and

wine aromatic compounds Page 50

13 R. Kilmister, Australia Multi-seasonal effects of warming and elevated CO2 on grape and wine

composition of mature, field grown Shiraz grapevines Page 51

14 L. Leolini, Italy Grape model implementation for studying the impact of climate change Page 52

15 P. Loussert, Argentina Optical and SAR satellite images potential for vineyard monitoring in the

climate change context Page 53

16 I. Pascual, Spain Influence of elevated temperature on fruit yield and grape composition of

thirteen Tempranillo grapevine accessions differing in cycle length Page 54

17 M.C. Ramos, Spain Climate change effects on phenology and yield of three white varieties

cultivated under rainfed conditions in the Penedès DO (NE Spain) Page 55

18 G. Sámson, Hungary Expected growing season temperature increase in Eger wine district of Hungary

based on regional climate modelling Page 56

19 J. Tonietto, Brazil Estimating the Impact of Climate Change on Temperate, Subtropical and

Tropical Grape Growing Regions in Brazil Page 57

20 J. Wu, France “HeatBerry”: sensitivity of berry ripening to higher temperature - berry

metabolism Page 58


Session 5 Ecophysiology for climate change

21 R. Albasha, France Hydraulic connections: Modeling shoots hydraulic architecture of grapevine to

apprehend leaf-scale gas exchanges and WUE in complex canopies Page 67

22 A. Cáceres-Mella, Chile Water deficit affects proanthocyanidin composition during ripening in Cabernet

Sauvignon (Vitis vinifera L.) grape skins Page 68

23 A. Cáceres-Mella, Chile Regulated water deficit and its effect on phenolic composition and sensory

characteristics of Cabernet Sauvignon wines Page 69

24 J.J. Cancela, Spain Irrigation effects about must´s aromatic compounds of cv Albariño – Galicia

(Spain) Page 70

25 L. Zhang, France Grapevine root growth under water stress and its relationship to root water

uptake Page 71

26 M.P. Diago, Spain Non-invasive NIR spectroscopy for in-field grapevine water assessment Page 72

27 A. Doligez, France Towards genome-wide association studies under abiotic stress in Vitis vinifera Page 73

28 E. Duchêne, France Consequences of elevated temperatures during ripening on the biosynthesis of

monoterpenols in grape berries Page 74

29 A. Filippi, Italy Flavonoid interaction with grape chitinase: natural and innovative system for

plant defence induction Page 75

30 I. Garcia de Cortazar-

Atauri, France How database used to calibrate phenological process-based models can affect

simulations under climate change scenarios? Page 76

31 I. Gonçalves, Portugal Regulated deficit irrigation on cv. Touriga Nacional in the Douro Demarcated

Region, Portugal - Physiological responses and productivity and quality effects on grapes

Page 77

32 W. Goupil, France Aromatic discrimination of Vitis vinifera L. cv. Sauvignon blanc clone.

Assessment of aromatic and enological potential Page 78

33 I. Hugalde, USA Physiological and Genetic Control of Vigor in a Ramsey x Riparia Gloire de

Montpellier Population. Page 79

34 D. Lecourieux, France Direct impact of high temperatures on grapevine berry development: a merge

transcriptomic, proteomic and metabolomic survey Page 80

35 J. Martinez-Lüscher,

Spain Climate change conditions (elevated CO2 and temperature) and UV-B alter

grape ripening rates and impact berry composition Page 81

36 N. Ollat, France Phenotypic variability for phenology among wild Vitis genotypes Page 82

37 C. Pañitrur-De la

Fuente, Chile How climate change may affect grapevine susceptibility to Botrytis Bunch Rot? Page 83

38 L. Pinasseau, France Polyphenomics based on UPLC-QqQ-MS for deciphering the genetic bases of

grapevine response to drought Page 84

39 C. Ribalta-Pizarro, Chile Effect of Abscisic Acid (ABA) on photosynthesis, carbon export from leaves and

sugar import in berries of Vitis vinifera L. cv. Carménère Page 85

40 L. Rossdeutsch, France Genes involved in the short and long term responses to water deficit in roots of

different grapevine rootstocks Page 86

41 G.B. Tornielli, Italy Changing environmental conditions influence the wine grape metabolism

during postharvest withering Page 87

42 Y. Velappan, Australia Regulation of Respiration, Tissue Oxygen Environment and Moisture Content in

Response to Seasonal Cues throughout Grape Bud Dormancy Page 88

43 P. Zhang, Australia Ensuring the sustainability of cool-climate Shiraz ‘peppery’ style in the context

of climate change Page 89

43bis E. Brouard, France Canogrape: mitigating the effects of climate change on berry composition by

canopy management Page 89bis


Session 3 Adaptation to climate change

44 P. Abbal, France A probabilistic model for sustainable wine growing Page 106

45 S. Trevisan, Italy Development of a model of flooding response in grapevine – Preliminary results Page 107

46 A. Destrac-Irvine,

France VitAdapt: an experimental program to study the adaptation of a large range of

Vitis vinifera varieties for Bordeaux vineyards Page 108

47 M. Duputel, France Climate change and vineyard irrigation: a decision support tool for wine

growers. Page 109

48 I. Filippetti, Italy Impact of post-veraison trimming on yield components and ripening in two

different environments in cv. Sangiovese Page 110

49 G. Marongiu, Italy Grape biodiversity of the vine is a resource to challenge the climate change: a

case of study in Sardinia Page 111

50 F. Martinez de Toda,

Spain A second spur pruning to delay the cycle of the vine up to two or three months Page 112

51 L.G. Santesteban,

France High-resolution thermal imagery to estimate water status variability within a

vineyard Page 113

52 N. Walbaum, Israël Can we help these berries in the desert? An approach to prevent over-exposure

of berries to radiation and high temperatures Page 114

session 4 Perception and adaptability of climate change by the actors

53 S. Alvarez-Gei, France Perception of irrigation practices by wine consumers in a context of climate

change. Page 131

54 G. Barbeau, France Ecophysiology of grapevine and adaptation to the environmental constraints in

vineyards of South America Page 132

55 G. Cargnello, Italy Researches on "Innovative" "Sustainable" political, technical, production

process and product, communication and marketing solutions aimed at helping to overcome the problems caused by climate change

Page 133

56 C. Corbo, Spain VIVA Sustainable Wine: the Italian label on sustainability performances Page 134

57 C. Corbo, Spain Building the stakeholder platform to foster sustainability in the wine sector Page 135

58 M. Fourment,

Uruguay-France Perception of climate variability and vineyards vulnerability in a coastal wine

region in South America Page 136

59 R. Savé, Spain The viticulture and oenology in XXI century, the value of landscape Page 137


ABSTRACTS

General Opening Lecture


The State of the Climate: Trends, Projections, and Relationships to

Viticulture and Wine Production

G.V. Jones

1

1Southern Oregon University, Ashland, Oregon, USA

Climate change has the potential to greatly impact nearly every form of agriculture. However,

history has shown that the narrow climatic zones for growing winegrapes are especially prone to

variations in climate and long-term climate change. The observed warming over the last 50-100

years in wine regions worldwide has benefited some areas by creating more suitable conditions

while others have been challenged by increased heat and water stress. Projections of future

warming at the global, continent, and wine region scales will likely continue to have both

beneficial and detrimental impacts through opening new areas to viticulture and increasing

viability, or severely challenging the ability to adequately grow grapes and produce quality wine.

Overall, the projected rate and magnitude of future climate change will likely bring about

numerous potential impacts for the wine industry, including – added pressure on increasingly

scarce water supplies, additional changes in grapevine phenological timing, further disruption or

alterations of balanced composition and flavor in grapes and wine, regionally-specific changes in

varieties grown, necessary shifts in regional wine styles, and spatial changes in viable grape

growing regions. This presentation will 1) provide an updated look at climate trends in wine

regions worldwide, 2) summarize the current state of the climate globally and the status of

viticulture and wine production, and 3) review updated model projections in relation to viticultural

viability and wine quality issues.


SESSION 1 : Climatic modelling at different scales

ORAL

Session 1, Keynote


The application of high-resolution atmospheric modelling to weather and

climate variability in vineyard regions

A. Sturman

1, P. Zawar-Reza

1, I. Soltanzadeh

2, M. Katurji

1, V. Bonnardot

3, A. Parker

4,

M. Trought5, H. Quénol

3, R. Le Roux

3, E. Gendig

6 and T. Schulmann

7

1Centre for Atmospheric Research, University of Canterbury, Christchurch, New Zealand

2MetService, Wellington, New Zealand

3LETG-Rennes COSTEL, UMR 6554 CNRS, Université Rennes 2, Rennes, France

4Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln, New

Zealand 5Plant & Food Research Ltd., Marlborough Wine Research Centre, Blenheim, New Zealand

6Department of Conservation, Christchurch, New Zealand

7Catalyst, Christchurch, New Zealand

Grapevines are highly sensitive to environmental conditions, with variability in weather and

climate (particularly temperature) having a significant influence on wine quality, quantity and

style (Jackson and Lombard, 1993; Jones et al., 2005; van Leeuwen et al., 2004). Improved

knowledge of spatial and temporal variations in climate and their impact on grapevine response

allows better decision-making to help maintain a sustainable wine industry in the context of

medium to long term climate change. This new knowledge can be used in both operational

decisions such as pruning regimes, canopy management, and response to frost and disease

occurrence, and longer-term decisions such as selecting grape varieties to suit environmental

conditions.

This paper reviews recent research in the application of weather and climate models that aims to

improve our understanding of climate variability at high spatial (1 km and less) and temporal

(hourly) resolution within vineyard regions of differing terrain complexity. The ability of the

Weather Research and Forecasting (WRF) model to simulate the weather and climate in vineyard

regions has been evaluated in South Africa, New Zealand and France. The main results of this

research are summarised, with examples used to illustrate model performance in three very

different environments. In South Africa, the WRF model has been applied at 500 m resolution in

the complex terrain of the Stellenbosch wine of origin district (34°S), where thermal stress on the

grapevine is often an important issue for the wine industry. WRF has also been applied at higher

latitudes: i) in two cool climate vineyard regions of New Zealand (Marlborough and Waipara),

where complex terrain has a major influence on temperature patterns and ii) in St. Emilion

(France), where the terrain is comparatively simple and the climate less complicated.

WRF performs well in reproducing the temperature variability across these very different

vineyard regions when compared to automatic weather stations. Coupling the atmospheric model

with bioclimatic indices (e.g. Huglin, cool nights, Grapevine Flowering Véraison) has also

provided useful insights into grapevine response to spatial variability of climate.

Acknowledgments: ANR-07194103 TERVICLIM (France) and Ministry for Primary Industries

(NZ) Contract N° UOC30915.

References:

Jackson DI, Lombard PB 1993. Environmental and management practices affecting grape

composition and wine quality – a review. American Journal of Enology and Viticulture 44: 409-

430.

Jones GV, White MA, Cooper OR, Storchmann K 2005. Climate change and global wine quality.

Climatic Change 73: 319–343.

van Leeuwen C, Friant P, Choné X, Tregoat O, Koundouras S, Dubourdieu D 2004. Influence of

climate, soil, and cultivar on terroir. American Journal of Enology and Viticulture 55: 207-217.

Session 1, oral 1


Assessment of future climatic conditions in French vineyards.

Consequences for defining adaptation strategies.

I. Garcia de Cortazar-Atauri

1, J. Caubel

2, H. Quénol

3, B. Bois

4, 5, I. Chuine

6, E. Duchêne

7,

R. Le Roux3, A. K. Parker

8, C.van Leeuwen

9, N. Ollat

9

1INRA, US 1116 AGROCLIM, Avignon, France

2CNRS, LSCE, UMR 8212, Gif-sur-Yvette, France

3CNRS/Université Rennes 2, UMR6554 LETG-Rennes-COSTEL, Rennes, France

4CNRS/Univ. Bourgogne, CRC/Biogéosciences UMR 6282, Dijon, France

5Univ. Bourgogne, Institut Universitaire de la Vigne et du Vin « Jules Guyot », Dijon, France

6CNRS, UMR 5175 CEFE, Montpellier, France

7INRA, UMR 1131 SVQV, Colmar, France

8Lincoln University, PO Box 85084, Lincoln, New Zealand

9EGFV, Bordeaux Sciences Agro, INRA, Université de Bordeaux, Villenave d’Ornon, France

Grapes are one of the main crops in France. Even if it only covers 3% of the total cultivated area,

it represents around 15% of the economic value of agriculture in France. Vineyards are located in

very different regions through France, covering very different climates, contrasting soils, with

widely varying production systems and using a large range of varieties. Current vineyards are the

result of an adaptation work over centuries to reach a balance between soil, grape varieties,

cultivation and winemaking techniques (van Leeuwen et al., 2004) to produce wines recognized

worldwide. However current climate change may endanger this equilibrium and the economic

balance of the system.

A suite of relevant ecoclimatic indicators were formulated and applied to investigate potential

impacts of climate on French vineyards Ecoclimatic indicators are defined as agroclimatic

indicators (e.g., high temperature days) calculated during specific phenological phases in order to

take into account the plant response to climate (e.g., flowering- harvest) (Caubel et al., 2015).

These indicators are linked with the ecophysiological processes which they characterize (for e.g.,

berry maturity).

These ecoclimatic indicators are calculated through the main vineyard regions in France (Alsace,

Bordeaux, Burgundy, Champagne, Cognac, Rhone valley, Languedoc, Loire valley, Roussillon

and South Western vineyards) using three different varieties representing different timing of

development (Chardonnay-early, Syrah-middle and Cabernet Sauvignon-late). Phenological

stages and indicators have been calculated using climatic data from 1950 to 2100 simulated by

various global climate models (ARPEGE, IPSL) using current forcing scenarios (AR5 – RCP 2.6,

4.5 and 8.5). Phenology and indicators were calculated with PMP (Chuine et al., 2013) and

GETARI software (Caubel et al., 2015) respectively.

Results described future climatic conditions for each vineyard, taking into account uncertainties

dues to models, varieties and scenarios. These results can help stakeholders to define regional

adaptation strategies to climate change.

References:

Caubel, J. et al., 2015. Broadening the scope for ecoclimatic indicators to assess crop climate

suitability according to ecophysiological, technical and quality criteria. Agricultural and Forest

Meteorology 207, 94–106.

Chuine, I. et al., 2013. Plant Development Models, in: Phenology: An Integrative Environmental

Science. Springer, pp. 275–293.

Van Leeuwen, C. et al., 2004. Influence of climate, soil, and cultivar on terroir. American Journal

of Enology and Viticulture 55, 207–217.

Session 1, oral 2


Nested scale approach to characterize climate aspect of vineyard terroirs in

a context of climate change

R. Le Roux

1, E. Neethling

1,2, L. de Rességuier

3, G. Barbeau

2, C. van Leeuwen

3, H. Quénol

1

1LETG-COSTEL, UMR 6554 CNRS, Université de Rennes 2, Rennes, France

2INRA UE 1117, Vigne et Vin, UMT Vinitera², 42, rue Georges Morel, Beaucouzé, France


Viticulture is an important practice across many regions worldwide, representing a key economic

activity. Within wine growing regions, climate has a central role in the characterization of a

specific vineyard terroir (Van Leeuwen et al. 2004; Jones et al 2006). As the grapevine is highly

sensitive to climate variations, both spatially and temporally, climate change is one of the most

important challenges facing the viticultural sector. Over the coming decades, wine growing

regions will be confronted by a modification of regional climate characteristics that may lead to

significant impacts on wine quality and typicality (Beltrando et Briche 2010; Neethling et al.

2012). Nevertheless, local climate and especially temperature variation could be very important

adaptation responses to climate change.

In this study, a nested scale approach is applied to characterize climate aspect of vineyard terroirs.

First, the climate structure of two French wine growing regions:Saint-Emilion and Anjou-Saumur

is compared, using classic weather station coupled with dynamic climate model. We use climate

data from DRIAS models, which are used for climate change projection. Bias between reality and

modeling are calculated using weather station. Second, we study climate variability at fine scale

using statistical modeling based on specific networks set up in study vineyard areas. Then we

compare projection for the two site at regional scale and try to estimate impact of these at fine

scale using locals models.

Results show that at regional scales, the effect of latitude is important between the two study

areas. However, at fine scales the variability in climate conditions is more complex with some

areas which present the same temperature characteristic in the two sites.

Working with a nested scale approach allowed the improvement of the knowledge about vineyard

climate. In a context of climate change, this knowledge is essential to propose an adaptation of

wine production for the futures decades without a loss of wine quality and specificity of each

terroir.

Session 1, oral 3


Climate predictions for vineyard management

A. Soret

1, N. Gonzalez

1, V. Torralba

1, N. Cortesi

1, F. J. Doublas-Reyes

1

1Barcelona Supercomputing Center, Barcelona, Spain

Predicting the future variability of atmospheric variables for the whole growth cycle of the wine

can provide useful information to end users for crop management. For instance, if a warm year is

expected, it is important to maintain the maximum of leaves as possible to protect the plant, while

if a humid year is expected, it is important to reduce leaf coverage in order to avoid diseases and

fungus. The earlier these decisions can be planned, the sooner unforeseen operational risks could

be identified.

To estimate future climate variability over coming weeks or seasons, current practices use an

approach based on retrospective climatology or persistence, with an assumption that the past will

also represent the future. Recent advances in climate predictions can provide a more informative

view by modeling future climatic variables over months or seasons. They analyze both the past

climate system and its current state at the specific time when the prediction is created to provide

the probabilities of different future outcomes, with an indication as to which will be the most

likely. It has been demonstrated that climate predictions can improve upon using climatology at

some spatial and temporal scales, so decision makers now have a new set of climate risk

management tools that can strengthen their decision making.

In other sectors as hydropower or electricity generation and demand balance, climate information

on seasonal-to-interannual time scales have already been illustrated for management decisions.

Probabilistic climate forecasts come with a new set of challenges for end users: information is

often untailored, hard to understand and apply in a decision-making context. EUPORIAS and

IMPREX are projects funded by the European Commission to address these challenges and

support the development of climate services in Europe. Furthermore, other ongoing parallel

European projects (SPECS and PRIMAVERA) will deliver a new generation of climate forecast

systems with improved forecast quality. Here we will present the state-of-the-art in climate

predictions, some examples to illustrate their application to other sectors and their potential

application for vineyard management.

Session 1, oral 4


Impacts of recent climate change and weather variability on UK viticulture

- combining weather and climate records with producers’ perspectives.

A. Nesbitt

1, S. Dorling

1, B. Kemp

2

1School of Environmental Sciences, University of East Anglia, Norwich, UK

2Cool Climate Oenology and Viticulture Institute (CCOVI), Brock University, Canada

Cool climate viticulture in the United Kingdom (UK) has seen a recent (2004–2014) 148%

increase in area to 1884 ha and a significant change in dominant vine varieties to Pinot Noir and

Chardonnay for sparkling wine production. However, the specific influence of recent climate

change in driving this trend, and the impact on yields of growing season temperature and

precipitation trends, of inter-annual weather variability, and of extreme events has not been

considered.

UK grape growers’ perspectives on climate change and weather variability, sourced through an

industry survey, were complemented by a quantitative analysis of climate and weather data

(1954–2013) for the main UK viticultural regions: south-east and south-central UK. Regionally

averaged monthly weather data was analysed and subjected to linear and stepwise regression

analyses to determine its relationship with yield. Climate variability (2002–2013) was also

mapped using higher spatial resolution downscaled output from the Weather and Research

Forecasting (WRF) model. Spring frost events that negatively affected yield were highlighted by

producers and evidenced using meteorological records.

Since 1993 all years have recorded a GSTave above the 1961–1990 mean of 13oC. Inter-annual

(1989–2013) growing season precipitation and temperature variability is high but the magnitude

of the variability has not changed significantly when compared with 1961–1990. Since 2004, and

the change in dominant vine varieties, the relationship between UK wine yield and GSTave is

statistically significant, however GSTave alone is shown not to reliably assure yield predictability.

Higher temporal resolution temperature and precipitation data show a stronger statistical

relationship with yield, particularly precipitation during flowering in June. No significant

decreasing trend (1961–2013) in air frost day frequency was found in April or May, the critical

months for bud-burst and initial shoot growth.

As identified by UK grape growers and through this work increasing GSTave superficially

suggests enhanced UK cool climate viticultural opportunities, but critically masks the additional

impact of shorter term temperature and precipitation events and high degrees of inter-annual

variability that continue to threaten productivity. Furthermore, the recent change in dominant vine

varieties appears to have increased viticultural sensitivity to climate variability. There is no

evidence of a reducing risk of cool and wet conditions during flowering in June.

Most growers regard recent climate change as having contributed to the growth of the industry,

but some see future climate change as a potential threat. This first quantitative and qualitative

analysis of climate vulnerability in UK viticulture identifies threats and opportunities, and will

help steer future climate change impact studies.

This work was supported through the award of a PhD research studentship to Alistair Nesbitt by

the UK Natural Environment Research Council (NERC) (grant number NE/J500069/1).


SESSION 1 : Climatic modelling at different scales

POSTER

Session 1, poster 1


Atmospheric circulation patterns and local weather types: a combined

study of climate variability in Saint Emilion vineyards

M. Eveno

1, O. Cantat

2, L. de Resseguier

3, C. van Leeuwen

3, H. Quénol

1, O. Planchon

1

1LETG-COSTEL, UMR 6554 CNRS, University of Rennes 2, Rennes, France

2LETG-GEOPHEN, UMR 6554 CNRS, University of Caen Basse-Normandie, Caen, France


A combined study of atmospheric circulation patterns (Catalogue of European Large-Scale

Weather Patterns adapted from the Hess-Brezowsky classification, published and updated by the

Deutscher Wetterdienst) and of local weather types (method developed by O. Cantat, 2003) has

been achieved to analyze the spatial and temporal climate variability at a fine scale. Precipitations

(in mm), temperature (in °C) and insolation fraction (in %), recorded at the Bordeaux-Mérignac

Météo-France station, have been related to average temperatures from each of the 90 sensors

(TINYTAG data loggers) distributed over the vineyards of Saint-Emilion, near Bordeaux, as an

experimental site of the European research program LIFE-ADVICLIM, coordinated by H. Quénol

(LETG-Rennes). Several variables were selected using the records of minimum, maximum and

average temperature recorded by the 90 sensors, including the daily temperature range or the

amplitude of minimum and of maximum temperatures, in order to work at a fine scale. The

analyzed period covers three years (2012, 2013 and 2014) and focuses basically on the growing

season (from April to October).

The first results of the analysis highlight some findings. At first, throughout the whole territory

and the studied period (i.e. the growing seasons of the years 2012, 2013 and 2014), the ten most

recurrent (greater than 3% occurrence rate) local weather types (out of a total of 32 types) have

been selected, thus facilitating the understanding of the results. The mild, clear and dry weather

are the most frequent (respectively 21%, 10% and 24% of days), whatever the circulation pattern

is. Conversely, the days with a mild, dry weather, and a grey sky are less frequent (whatever the

circulation pattern). In addition, two main circulation patterns emerged: a North-West / North

circulation and a South circulation (respectively 30% and 28% of days). Moreover, the most

common combinations of atmospheric circulation pattern / local weather type are (1) a Northwest

/ Northeast circulation associated with a warm, clear and dry weather, and (2) a South circulation

combined with a mild, grey and rainy weather.

This analysis will be improved using statistical tools and cartographic representations. The aim is

to investigate further “extreme days” and their climatic features. The "wind speed" variable will

be added to the definition of local weather type. The succession of weather types will also

complete the study. Furthermore, regional analyzes (across different European vineyards) will be

compared to the results obtained at local scale (in the vineyards of Saint-Emilion).

Session 1, poster 2


High-resolution agrometeorological observations to assess impact on grape

yield and harvest date

N. Fontes

1*, J. Martins

1, A. Graça

1

1SOGRAPE VINHOS, S.A., Aldeia Nova, Avintes, Portugal

*Corresponding author: [email protected]

Grapevine phenology, quality and yield are very dependent on weather at local scales. According

to different studies, climate change is expected to advance grapevine phenological stages. Indeed,

projections on grape maturity and harvest dates reported expected advances over years for many

varieties across different winegrowing regions. The present work aims at providing high-

resolution (vineyard-scale) data on grapevine phenology, yield and grape quality in four

Portuguese wine regions: Alentejo, Dão, Douro and Vinho Verde. Climate data collection and

analysis, between 2011 and 2015, through a network of weather stations (3 per vineyard, 1

vineyard per region) were performed, with each region displaying very different weather patterns

and having contrasting geo-morphologies. High-resolution agrometeorological indices were

calculated by means of organizing original data from each weather station into annual, growing

season or important growth periods’ stadia and subsequently used to derive bioclimatic indices

(growing season temperature - GST, growing degree-days - GDD, cool night index - CI, and

heliothermal index - HI) and extreme climate indices (ETCCDI). Comparison of region-reference

with high-resolution bioclimatic indices showed significant differences and demonstrated the

importance of vineyard-scale assessment for viticultural zoning. Observed extreme events were in

agreement with projections for Portuguese wine regions. Moreover, a multivariate linear

regression analysis of 5-year (2011-2015) time-series data of grapevine phenology, yield and

grape quality against corresponding agrometeorological data has been performed. The resulting

statistical model appears to be a valuable tool for production and harvest date prediction. Still,

further validation is needed with longer time-series, so the model will continue to be updated as

more data becomes available and periodically retested for accuracy. Compared assessments on the

impact of climate change on grape growing and winemaking operations, across wine regions,

should help actors of the wine industry to define strategies for higher long-term sustainability and

profitability.

Session 1, poster 3


Variability of grapevine phenology in Swiss vineyards bordering the

Geneva Lake: influence of temperature and local atmospheric circulation

M. Mota

1, F. Chevalier

2, S. Burgos

1,3, V. Bonnardot

2*, L. Steiner

1, O. Planchon

2, E. Fortier

1,

H. Quénol2

1Agroscope Changins, Nyon, Switzerland

2LETG-Rennes-COSTEL (CNRS UMR 6554), Université Rennes-2, Rennes, France

3Bern University of Applied Science, School of Agriculture, Zollikofen, Switzerland


The aim of this work was to contribute to increase knowledge on fine scale climate and its impact

on grapevine phenology in Swiss vineyards bordering the Geneva Lake. Dates of budburst,

flowering and véraison were monitored during three growing seasons (2011-2013) in 19 vineyards

of Gamaret situated in proximity of the lake, yet in different other environnemental conditions.

Harvest was performed each year at the same date and sugar content, total acidity and pH were

measured in the grapevine must. Observed temperature data from sensors located in these

vineyards as well as additional climatic data (windspeed and direction and relative humidity) from

automatic weather stations of the federal AGROMET network were analyzed over the same

period. Statistical analyses (PCA and cluster) were used to study spatial variability of phenology

in relation to temperature. Results showed that there are significant correlations between Gamaret

phenology and temperature (in terms of degree-days, high night temperature, duration with

temperature below 12°C at night and daily thermal amplitude). Four groups of plots (sometimes

relatively distant from each other) stood out of the cluster analysis with thermal amplitude as the

main factor of differentiation in grapevine phenology. One of the clusters associated plots with

early phenological stages, high sugar content and low acidity in the grapes. A significant spatial

variability of temperature was shown in this small region generating different climatic conditions

under which grapevine grow and berries ripen. At the same time, climatic analyses were

performed at different scales to study the influence of the lake proximity and its contribution in

the spatial temperature variability of the region. Despite the obvious influence of regional winds

in this wine region, due to the geographical location between the Jura and the Alps mountain

ranges, analysis of climatic data also showed the occurrence of local breezes on the shores of the

Geneva Lake. The diurnal temperature variability observed in the vineyards was studied in

relation to the local air circulation. Results showed that the breeze originating from the lake

developed in the morning with impacts on temperature in the vineyards that varied as a function

of its strength. Further investigation by means of atmospheric modeling could help in

understanding the climatic impact in the vineyards in greater detail, while monitoring of grapevine

phenology and berry composition is essential to provide data in order to study the viticultural and

oenological impacts.

Session 1, poster 4


Shifts in climate suitability for wine grape growing in the Cotnari

(Romania) winegrowing region as effect of climate change

H. Quénol

1, L.M. Irimia

2, C.V. Patriche

3, V.V. Cotea

2

1LETG-Rennes (COSTEL), UMR 6554 CNRS, Rennes, France

2University of Agricultural Sciences and Veterinary Medicine, Iaşi, Romania

3Romanian Academy, Iasi, Romania

Climate change modifies the multiannual averages of climatic parameters representative for the

wine regions and along with it the grapevine growing conditions and typicity of wines that these

regions produce. Wine regions around the globe are affected (Jones et al., 2005), but with

different intensity of climate change and different consequences on grapevine from one wine

region to another. Climate change is also felt in the temperate continental climate Dfb that

characterizes Romanian viticulture. Recent studies from the NE part of the country, totaling about

20,000 ha vineyards, have revealed an increase, during the 1971 to 2000 time period, of the

average temperature of January by 1.1 °C up to values specific to oceanic climate Cfb (Quenol et

al., 2014). Vineyards in the region, which produced exclusively white wines, have started to

produce red wine too in the last decade. This context has led to a study on climate change

influence on the Cotnari vineyard, a representative one for the Romanian viticulture and for the

viticulture of the temperate continental climate Dfb too. The paper presents the evolution of ten

climatic parameters representative for the vineyard between 1961 to 2013 time period, and a

comparative analysis of climate suitability for wine grape growing they generate for the 1961 to

1980 time period and 1981 to 2013 time period. Climate suitability for wine grape growing has

been established by using a multi-criteria GIS based methodology and revealed as the fine-scale

spatial distribution of types of wine production which vineyard’s climate allows (Irimia et al.,

2014). The results reveal the increase of helio-thermal resources of vineyard’s topoclimate amid

water resources constancy. As a result of these developments, the Cotnari vineyard topoclimate

passed from its suitability for producing quality white wines (87.9% of the area) and white table

wines (11.9% of the area) during 1961 to 1980 time period, to its suitability for red table wines

(60.6% of the area) and quality white wines (39.2% of the area) during the 1981 to 2013 time

period. The study reveals shifts of climate suitability for white wine production at higher altitudes,

over 200 m a.s.l., and its replacement in the low zone of wine growing area (between 106 and 200

m a.s.l.) by climatic suitability for red table wines.

References

Irimia L.M., Patriche C.V., Quenol H., 2014. Analysis of viticultural potential and deliniation of

homogeneous viticultural zones in a temperate climate region of Romania. J Int Sci Vigne Vin,

48(3), 145-167.Jones G.V., White M.A., Cooper O.R., Storchmann K., 2005. Climate change and

global wine quality. Clim Change, 73:319-343.Quénol H., Planchon O., Dubreuil V., 2014.

Variabilité climatique et changement climatique à l’échelle des vignobles mondiaux. In

Changement climatique et terroirs viticoles, Coord. H. Quénol, Ed. Lavoisier Tec&Doc, 91-114.

Session 1, poster 5


Spatial temperature variability and distribution at local scale in Saint-

Emilion and Pomerol

L. de Résséguier

1, R. Le Roux

2, H. Quénol

2, C. van Leeuwen

1


2Laboratoire COSTEL, UMR6554 LETG du CNRS, Université Rennes 2-Haute Bretagne,

Rennes, France

It has become possible to study spatial variability at fine scale, thanks to the recent evolution of

new technology, especially the miniaturization of reasonably priced sensors.

Knowing the importance of temperature on vine development and wine quality, it is important to

improve the assessment of climate variability for a better adaptation of plant material or training

systems, particularly considering the recent evolution of the climate.

In this context, a substantial network of 90 temperature sensors has been installed in the famous

winegrowing areas of Saint-Emilion and Pomerol which covers 12,500 ha of vineyards.

Each sensor has been positioned taking into account environmental parameters which can have an

influence on temperature at local scale, including topography (altitude, exposure, slope), urban

areas, rivers, latitude and longitude.

Initial results show great variability especially for minimum temperatures with an amplitude of up

to 10°C on a given day, in particular during anticyclonic clear sky conditions without wind. In this

case, relief plays an important role in spatial distribution, with warmest temperatures on the

highest areas and cooler temperatures in the lower areas.

Spatial modeling of the Winkler index has been implemented over the area. This index is well

adapted to study the influence of temperature on vine development. The result presents great

amplitude of over 250°C.days in average during the years 2012 to 2014. The map of this index in

2012 (Figure 1) shows a spatial structure which is linked to the relief and environment parameters.

The limestone plateau of Saint-Emilion and its south facing slopes are the warmest parts of the

area. The North East of the area, the South East and the bottom of the valleys are cooler. Another

warm part of the region, not specifically linked to the topography, is the western part of the area

around the town of Libourne, including Pomerol.

Session 1, poster 5


Figure 1: Spatial distribution of Winkler Index (2012) and a topographic sequence showing GDDs

registered at specific sensors

Session 1, poster 6


The future of the viticulture in Europe under discordant climate scenarios:

the VINTAGE project

G. Sgubin

1, D. Swingedouw

1

1UMR CNRS 5805 EPOC - OASU - Université de Bordeaux, Pessac, France

Due to the critical influence of background climatic conditions on viticulture and wine quality,

anticipating and understanding the future climate changes is a priority for winemakers all over the

world. The last IPCC (IPCC, 2013) report strengthened the hypothesis that the increase in the

atmospheric concentration of greenhouse gases since the industrial era have significantly

contributed to the rise of global temperature observed in the 20th century (Levitus et al., 2001).

Future projections, which are mainly based on the results of CMIP5 climate models (Taylor et al.,

2012), reveal that the on-going global warming trend is expected to continue throughout the 21th

century. Nevertheless, the CMIP5 models show a significant uncertainty over some region, which

cannot be merely explained by the different model’s climate sensitivity. The North Atlantic

represents the most evident example. Indeed, in this region, different models show even opposite

trends for the future temperature: while most of the models projects a warming trend, a subset of

models shows an abrupt drop of temperature of several degrees in a few years. This rapid cooling,

opposite to the general warming trend, is the effect of a local disruption of the pre-existing climate

system associated to the oceanic convection in the subpolar regions (Sgubin et al., in revision).

The occurrence of a convection collapse in a few models while not in the others gives rise to two

main divergent scenarios over the North Atlantic, strongly influencing temperature and

precipitation evolutions over the Europe, which would require distinct strategies of adaptation.

These evidences are at the base of the recently set-up VINTAGE project, aimed at analysing

separately the different impacts of future climate change on viticulture over traditional regions of

Europe. Here we present the main guidelines of the project, which mainly consists in three points:

1) mapping the different effects of climate changes on viticulture at global scale (coarse

resolution) using different subsets of CMIP5 models; 2) Evaluating the viticulture zoning at

regional scale (high resolution) through downscaling techniques from CMIP5 models; 3)

assessing different adaptation measures for the viticulture in critical regions, e.g. the Bordeaux

region, through a coupling of high-resolution climate models’ results and a General Phenology

Model. Preliminary results on the viticulture zoning at coarse resolution in Europe will be

presented, stressing the different impacts driven by the divergent responses of oceanic convection

in the North Atlantic.

References :

IPCC, 2013. The Physical Science Basis. Cambridge University Press, 1535 pp.

Levitus, S. et al., 2001. Anthropogenic warming of Earth’s climate system. Science, 292, 267–

270.

Sgubin, G., Swingedouw, D., Drijfhout, S., Mary, Y., Bennabi, A., 2015. Abrupt cooling over the

North Atlantic in IPCC-class climate models. Nature Communications, in revision.

Taylor, K.E., Stouffer, R.J., Meehl, G.A., 2012. An Overview of CMIP5 and the experiment

design. Bull. Amer. Meteor. Soc., 93, 485-498.


SESSION 2 : Impacts of climate change

ORAL

Session2, oral 5


Climate change impacts on viticultural yields in Europe using the STICS

crop model

H. Fraga

1; I. Garcia De Cortazar-Atauri

2; A. C. Malheiro

1; J. A. Santos

1

1Centre for the Research and Technology of Agro-Environmental and Biological Sciences,

Universidade de Trás-os-Montes e Alto Douro, Vila Real, Portugal, [email protected] 2INRA, US1116 AgroClim, Avignon, France

Climate has a predominant role on growth and development of grapevines (Fraga et al., 2013).

Consequently, climate change may become an important challenge to the winemaking sector. The

present study aims to develop climate change projections for grapevine yields in Europe. For this

purpose, gridded climatic variables over a recent-past (1950-2000) and RCP8.5 future scenario

(2041-2060), are coupled with the STICS crop model (Brisson et al., 2008). For each grid-cell in

the European sector, soil (e.g. type, texture, depth) and terrain parameters are used as model

inputs. Grapevine and crop management parameters are also determined. Yield simulations under

current and future climates are then compared to identify climate change impacts. For 1950-2000,

the crop model is able to accurately simulate yields for the main current European wine regions,

showing lower yields in Southern Europe and higher yields in more central/northern regions. For

2041-2060, the results depict an increase in yield in the later regions, and a decrease in the former,

mostly over inner Iberia. The projections also show a northwards extension of the potential

grapevine growth areas, emerging new potential winemaking regions up to 55ºN. The current

study is a first attempt to apply the STICS crop model to the whole European sector, by using

climatic, soil and terrain data as inputs. By using climate change projections as inputs to crop

models, the present approach may represent a vital decision support system for the European

winemaking sector.

Acknowledgments: This work was supported by the project “ModelVitiDouro” - PA 53774”,

funded by the Agricultural and Rural Development Fund (EAFRD) and the Portuguese

Government by Measure 4.1 - Cooperation for Innovation PRODER program - Rural

Development Programme. This work was also supported by national funds by FCT - Portuguese

Foundation for Science and Technology, under the project UID/AGR/04033.

References:

Brisson, N., Launay, M., Mary, B. and Beaudoin, N., 2008. Conceptual Basis, Formalisations and

Parameterization of the STICS Crop Model. Editions Quae, Versailles, France, 297 pp.

Fraga, H., Malheiro, A.C., Moutinho-Pereira, J. and Santos, J.A., 2013. Future scenarios for

viticultural zoning in Europe: ensemble projections and uncertainties. Int J Biometeorol, 57(6):

909-25.

Session2


Vintage Advancement and Compression in Australia due to Climate

Change

P. R. Petrie

1, 2 and V. O. Sadras

1

1South Australian Research and Development Institure, Adelaide, Australia

2Australian Wine Research Institute, Adelaide, Australia

The shift in phenological development is the most conspicuous biological effect of recent

warming, with advanced maturity of grapevines being reported for Europe, North America and

Australia (Duchêne and Schneider, 2005 ; Wolfe et al., 2005 ; Petrie and Sadras, 2008). Between

1993 and 2006, maturity of grapevines in Australia advanced 0.5 to 3.0 d y-1 or 9.3 ± 2.67 d ºC-1

across a range of regions (Petrie and Sadras, 2008). Warmer temperatures and an advancement in

maturity potentially impact on fruit quality and wine style, often causing ‘unbalanced fruit’ where

high sugar levels are reached before optimum colour (and potentially flavour) development has

been achieved (Sadras and Moran, 2012).

Associated with the advancement in maturity there have also been anecdotal reports of

compression of the harvest period, with different varieties grown in the same region now reaching

optimal maturity at similar dates and a narrower peak period over which a single variety matures.

Given the capital intensive nature of the wine industry (processing capacity is used at most for 8-

12 week per year) climatic trends that compress harvests have the potential to impact on financial

viability.

This anecdotal evidence has been difficult to validate and quantify. Analysis of commercial

maturity data, dating from 1995 to 2014, from a major Australian wine company suggested that

vintage compression was being driven by two facets. Firstly, there was a consistent reduction in

the time interval between maturities of different cultivars grown in the same region. For example

in the McLaren Vale region the range in dates between peak maturity of the Chardonnay and the

later maturing Cabernet Sauvignon was approximately 20 days in the mid 1990s and is now

averaging closer to five days. The Shiraz matures between the Chardonnay and Cabernet

Sauvignon and this is placing considerable pressure on winery infrastructure. Secondly, individual

cultivars are also reaching maturity over a shorter period within one region. For example; Shiraz

across the Barossa region (both Barossa and Eden Valley) reached maturity over a 30 day period

in the mid 1990s and this has reduced to a 15 day window by the middle 2010s.

While this analysis does not allow separation of the effect of warming and management there

have not been step changes in management practices during the study period. Regardless of the

causes, the advancement in maturity and reduction in the duration of the window of peak maturity

illustrate the challenges faced be wineries to process fruit over a shorter and more intense period.

This research was supported in part by Wine Australia and the Department of Agriculture,

through the Filling the Research Gap program.

References :

Duchêne E. and Schneider C., 2005. Grapevine and climate changes: a glance at the situation in

Alsace. Agronomy for Sustainable Development 25, 93–99.

Petrie P.R. and Sadras V.O., 2008. Advancement of grapevine maturity in Australia between 1993

and 2006: Putative causes, magnitude of trends and viticultural consequences. Australian Journal

of Grape and Wine Research 14, 33–45.

Sadras V.O. and Moran M.A., 2012. Elevated temperature decouples anthocyanins and sugars in

berries of Shiraz and Cabernet Franc. Australian Journal of Grape and Wine Research 18, 115–

122.

Wolfe D.W., Schartz M.D., Lakso A.N., Otsuki Y., Pool R.M. and Shaulis N.J., 2005. Climate

change and shifts in spring phenology of three horticultural woody perennials in northeastern

USA. International Journal of Biometerology 49, 303–309.

Session2, oral 6


Climate change, water budget and grapevines in Germany

M. Hofmann

1, H. R. Schultz

1

1Hochschule Geisenheim University,Geisenheim ,Germany

Extended periods without precipitation observed for example in Central Europe including

Germany during the 2015 season, can lead to water deficit and reduced yield and quality for

grapevines. Regional climate models project changes of precipitation amounts and patterns,

indicating an increase of comparable situations in the future. In order to assess possible impacts of

climate change on the water budget of grapevines, a water budget model was developed, which

accounts for the large heterogeneity of vineyards with respect to their soil water storage capacity

and potential evaporation as a function of slope and aspect and viticultural management practices.

The model was fed with data from soil maps, a digital elevation model, the EU vineyard-register

and regional climate models, allowing to conduct a risk assessment for the wine-producing

regions Rheingau and Hessische Bergstraße on the scale of individual plots of land. The

simulations showed that the risk for drought stress varied substantially between vineyard sites but

might increase for steep-slope regions in the future.

Session2, oral 7


Multi-seasonal effects of warming and elevated CO2 on the physiology,

growth and production of mature, field grown, Shiraz grapevines

E. J. Edwards

1, D. Unwin

2, R. Kilmister

2 and M. Treeby

2

1CSIRO Agriculture, Adelaide, Australia

2DEDJTR, Irymple, Australia

Adaptation to climate change is of particular importance to perennial horticulture due to the

longevity of plantings and, in the case of the wine industry, the role of fruit quality; crop value can

vary by more than ten-fold depending on composition. To date, industry concern about climate

change has largely focused on temperature, possibly due to the availability of vintage records,

which have provided objective support for empirical observations of changes in grapevine

phenology during recent decades. However, the effects of elevated atmospheric carbon dioxide

concentration (eCO2) - the primary driver behind climate change - on the physiology of leaves of

C3 plants have long been known, and, if applicable to grapevines, are likely to lead to wide-

ranging effects on shoot growth, production and grape composition.

We previously developed open top chambers (OTCs) that used an active heating system to

generate 2°C of warming in a mature vineyard, managed to current industry best practice. Those

OTCs were subsequently augmented with a system to elevate CO2 around the grapevines, thereby

providing the capacity to impose warming and eCO2 simultaneously; effectively simulating a

future climate. Sixteen OTCs were established, in a Shiraz vineyard, together with additional non-

chamber controls. Warming and eCO2 were imposed in a complete factorial design with four

replicates. Thus, the effect of eCO2 could be separated from the effect of warming. The

experimental system was fully operational prior to budburst in the 2013/14 growing season and

has run continuously from that time on.

Our previous OTC work demonstrated that all aspects of vine phenology were advanced under

2°C of warming, but that there was little effect on leaf physiology. In contrast, as a C3 plant, it

was expected that the major effects of eCO2 would be driven by changes in leaf physiology.

Typically, plants grown under eCO2 have higher rates of photosynthesis initially, but acclimate to

eCO2 over time, demonstrated by lower rates of photosynthesis than plants grown under ambient

CO2 when measured in a common atmosphere. An increase in photosynthesis of vines in the eCO2

treatments was indeed observed, but, even with a canopy that had developed under eCO2, very

little acclimation to eCO2 occurred. As a consequence, a year-on-year increase in vine non-

structural carbohydrate (NSC) reserves was likely and initial sampling of woody material at the

end of the first season suggested that this was indeed the case. The effects of warming alone

corroborated the previous work, whilst no significant interaction between warming and eCO2 was

found during the first season on phenology, physiology or fruit composition. However, NSC is

linked with factors such as shoot vigour, fruit-set and productivity, so an increase in vine NSC

could be expected to lead to an incrementally more important interaction between warming and

eCO2 over a number of seasons. During the second season of the treatments, such an interaction

on phenology was seen; maturation dates separating for the eCO2+ambient temperature and

eCO2+warming treatments. The effects of the treatments on fruit and wine composition are

provided in a partner presentation.

In conclusion, the limited acclimation of grapevine leaf photosynthesis to eCO2 observed is likely

to result in an increasing interaction between eCO2 and climate warming over a number of

seasons, requiring changes in vineyard management to prevent negative impacts on fruit

composition.

Session2, oral 8


Powdery mildew evolution in cool climate regions in response climate

change:

The example of Burgundy

S. Zito

1, A. Caffarra

2, T. Castel

1, B. Bois

1,2

1CRC – UMR Biogeosciences, Université Bourgogne Franche Comté / CNRS, Dijon, France

2ITK, Clapiers,France

3Institut Universitaire de la Vigne et du Vin, Université Bourgogne Franche Comté, Dijon,

France

Vitiviniculture worldwide is currently facing two major challenges: adapting to climate change

and reducing its environmental footprint. Plant protection is a central aspect of both of these

challenges, because pest and diseases development is strongly controlled by climate conditions,

and because viticulture requires large quantities of pesticides to control pest and diseases. The

current study addresses the changes in powdery mildew pressure in Burgundy in response to

climate change. To assess the past evolution of powdery mildew risk, a time series of risk rates

was built on the basis of expert annual reports about this disease in Burgundy. In addition, we

created a comprehensive database including data on the yearly number of phytosanitary

treatments for powdery mildew control. This database is based on the informations collected from

509 vine growers and includes each of the 4 subregions of Burgundy. . The number of yearly

treatments has not changed significantly since the 1950’s, despite considerable improvements in

spraying technology,support systems innovations and collective policies towards a global

reduction in pesticide use. To assess possible changes in disease pressure in response to climate

change, we simulated powdery mildew primary contaminations on grapevine using (1) the BRIN

and GFV phenological models, (2) a mechanistic model for Erysiphe necator and (3) statistically

downscaled climate data from the SCRATCH08 project (CMIP3 A1B scenario from 10 GCM).

Due to shifts in phenology timing in response to warmer temperatures, the duration of the

sensitivity period of grapevine to powdery mildew is expected to be shorter in the future. The

number of weeks during which the primary contaminations occurs (model simulations) appeared

to be a relevant indicator for powdery mildew risk. The projections of this indicator for the mid

and the end of the 21st century show values similar to present. These projections depend strongly

on the GCM model from which the climate data used as input in the

phenological/phytopathological models were downscaled

Acknowledgments: this research was funded within the VINTAGE European project FP7.

Keywords: powdery mildew, grapevine, climate change, Burgundy

Session2, oral 9


Potential changes in water deficit and phenology of grapevine under climate

change conditions in NE Spain: A modeling approach to watershed level.

R. Savé

1, F. de Herralde

1, X. Aranda

1, E. Pla

2, D. Pascual

2, I. Funes

1, B. Grau

1, C. Biel

1

1IRTA, Torre Marimon, Barcelona, Spain

2CREAF-UAB, Catalonia, Spain

To evaluate the vulnerability to climate change of grapevine culture under Mediterranean

conditions in the Siurana watershed (South Catalonia, NE Spain), net water needs of grapevine

were estimated for the XXI century using a combination of downscaled climate projections

(ECHAM5 plus MM5) in two IPCC scenarios (B1 and A2, SRES AR4), watershed hydrological

model (SWAT) and FAO-56 procedure to calculate crop potential evapotranspiration. Changes in

the growing cycle were estimated analyzing changes in temperature during the critical

phenological phases. In comparison with baseline conditions (1984-2008), climate change

projections predicted a 12% (B1) to 28% (A2) reduction in precipitation, and a 2.2º C (B1) to 3.6º

C (A2) increment of mean annual temperature at the end of the century (2076-2100). The changes

of the environmental conditions would affect water availability for grapevine: net irrigation needs

(NIN) would increase significantly along the century, supposing an increasing of 9.3% to short

term (2006-2030) in scenario A2, respect NIN average for the baseline period, 19 m3 ha-1 year-1.

The increasing in NIN respect baseline period would be very important for the long term period

(2076-2100) assuming the worst scenario, 144 m3 ha-1 year-1. Although it might seem not very

high quantities of water irrigation, it would be critical in Siurana watershed where water irrigation

comes mainly from rainfall and runoff collection in small reservoirs. The decrease in the amount

of soil water availability along the growing season and the increasing potential evapotranspiration

(ET0) would be the main factors affecting the significant increase of water irrigation needs in

grapevine. In areas where irrigation water is not and would be not available in the future, this will

impose water restrictions on growth and impact the ability of grapevines to undergo the normal

ripening and consequently could impact production and wine quality.

Changes in temperature would be directly related with phenology. The onset of the growing cycle

could be advanced even in 13 days, the number of days with thermal stress could increase

significantly and growing cycle could be shortened because of the quick heat accumulation (long

term period “2076-2100” for A2 scenario) resulting in a new balance between alcoholic maturity

and phenolic ripeness, a potential disruption in the climate-variety balance.

Results are showing the high vulnerability of winegrowing, despite its expanding technology, to

changes in climate, and even more to site, plot, orchard, or terroir conditions.

Acknowledgments : This work has been partially funded by Fundació Catalunya Caixa project

“Adaptations to Climate Change on Water Use” (ACCUA), and the Spanish Ministry of Science

and Innovation through the projects CONSOLIDER-MONTES (CSD2008-00040), MICINN

VULNVID (AGL2008-04525-C02-02) and GRIFO (AGL2010-21012).

Session2, oral 10


Elevated CO2 concentration: Impact on growth and grape quality of Vitis

vinifera cv. Riesling and Cabernet Sauvignon for two accompanied vintages

Y. Wohlfahrt

1 and M. Stoll

1

1Hochschule Geisenheim University, Department of General and Organic Viticulture,

Geisenheim, Germany

Facing the challenges of climate change an increase in atmospheric carbon dioxide (CO2) has

been predicted in various reports by the Intergovernmental Panel on Climate Change (IPCC). The

benefits of increasing CO2 levels under greenhouse environment have been well investigated for

various crops. However, for perannial plants such as grapevines research under free carbon

dioxide enrichment is hardly trialed. To investigate the response of field grown grapevines under

elevated CO2 conditions a FACE (Free Air Carbon dioxide Enrichment) facility for Vitis vinifera

using cultivars Riesling and Cabernet Sauvignon was established at Geisenheim University

(50°N, 8°E, Germany). The two varieties were planted in circular formation as triplicates and

were exposed perennial to either ambient (400 ppm) or elevated (+ 20 %) CO2 conditions.

Results showed that growth and vigor increased within two consecutive years (2014 and 2015) for

both varieties grown under elevated CO2 conditions. Measurements of summer pruning weight of

the shoots were carried out in 2015 at two stages before and after veraison indicating a higher

biomass production under elevated CO2 conditions compared to ambient. Leaf area measured in

2014 and 2015 at the developmental stages of pepper corn size of the berries (modified E-L 29)

and at veraison (modified E-L 35) showed similar tendencies. This will be of particular

importance since growth and vigor impact on vine´s microclimate hence interfering with fruit

composition and fruit health.

During the two accompanied ripening periods single berry weight, bunch architecture and bunch

compactness altered. Riesling grown under elevated CO2 showed an increased single berry weight

and higher bunch compactness compared to vines grown under ambient conditions for both

vintages. In terms of single berry weight similar results were achieved for Cabernet Sauvignon in

2015. In terms of yield no significant differences occurred for both varieties during vintage 2014.

2015 yield was significantly higher for both cultivars grown under elevated carbon dioxide

conditions. Monitoring the occurrence of Botrytis cinerea elevated CO2 concentration did not alter

incidence nor frequency of this pathogen in Riesling during both seasons.

The obtained results over two vintages under elevated CO2 conditions indicate first responses of

field grown grapevine in respect to some vegetative and generative parameters. Investigations

towards other physiological responses as well as the impact on fruit composition will be part of an

ongoing study.

Session2, oral 11


The 2003 vintage, an anticipation of future Bordeaux vintages in a context

of climate change?

S. Marchand1, M.-C. Perelló

1, N. Le Menn

1, M. Picard

1, C. van Leeuwen

2, G. de Revel

1

1Univ. Bordeaux, ISVV, EA 4577, Unité de recherche OENOLOGIE, Villenave

d'Ornon,France

INRA, ISVV, USC 1366 OENOLOGIE, Villenave d'Ornon, France 2EGFV, Bordeaux Sciences Agro, INRA, Université de Bordeaux, Villenave d’Ornon, France

Even in old wines, the aroma and taste depends of the composition of the wine when it was young

and of extrinsic physico-chemical parameters (such as temperature, light and oxygen). Some

compounds can react, or can be separated from their precursors, to liberate odorous compounds.

At the bottle opening, wines reveal the cards that were distributed during their youth. A part of the

composition of mature wines is related to “terroir” parameters modulated by the vintage,

viticultural and enological management. The extreme heat and drought of the 2003 vintage leads

climate specialists to consider it as atypical. The climate of the 2003 summer may have produced

an effect on secondary metabolite levels. The generation of aroma precursors and the natural

selection of wild microbiota have probably been affected by these particular temperatures and

water status. From these two observations, the question is: what are the consequences of the

particular weather conditions of the 2003 vintage on the composition of 2003 wines today? If the

composition of the 2003 vintage wines is singular, it might be a glimpse of the evolution of the

expression of Bordeaux wines impacted by climate change. To try to answer the question, we

have quantified several odorous and biogenic compounds in red Bordeaux wines from the 2003

vintage and in comparable wines from other vintages of the 2000 decade. In particular some

compounds associated to the expression of the “bouquet of wines” have been studied. Results

show that 2003 wines present atypical profiles, the so expected equilibrium and harmony of the

“bouquet” seems to be lost. Among the more impacted molecules are tabanone (Slaghenaufi et al.,

2014) presenting “spicy” and “tobacco” odorous notes and dimethyl sulfide (DMS) presenting

“truffle” notes. DMS is also one of the key compounds of the expression of Bordeaux red wines

“bouquet”(Picard et al., 2015) and contributes to enhance the fruity expression of red wines (Lytra

et al., 2016). Another noticeable result concerns biogenic and volatiles amines (such as histamine,

ethylamine and methylamine), these molecules are produced by the wine microbiota and are

responsible of sanitary depreciations of wines (Leitão et al., 2000). The exceptional high levels of

volatiles amines in the 2003 wines constitute a disquieting result. The hypothesis of a

modification of wine microbiota or of young wine composition due to the climatic conditions can

be proposed. This survey shows the particular organoleptic and sanitary status of old wines from

the 2003 vintage. It emphasis the impact of heat and severe drought on the ageing potential of red

Bordeaux wines which constitutes a key point of their personality. If 2003 vintage can be

considered as an anticipative vintage, the bottles of 2003 opened today can help us to make a

projection of the profiles of Bordeaux wines from the future.

References :

Slaghenaufi D., Perello M.-C., Marchand-Marion S., Tempere S. and de Revel G., 2014.

Quantitative solid phase microextraction - Gas chromatography mass spectrometry analysis of

five megastigmatrienone isomers in aged wine. Anal. Chim. Acta, vol. 813, pp. 63–69.

Picard M., Thibon C., Redon P., Darriet P., De Revel G. and Marchand S., 2015. Involvement of

Dimethyl Sulfide and Several Polyfunctional Thiols in the Aromatic Expression of the Aging

Bouquet of Red Bordeaux Wines. J. Agric. Food Chem., vol. 63, no. 40, pp. 8879–8889.

Lytra G., Tempere S., Marchand S., De Revel G. and J.-C. Barbe, 2016. How do esters and

dimethyl sulphide concentrations affect fruity aroma perception of red wine? Demonstration by

dynamic sensory profile evaluation. Food Chem., vol. 194, pp. 196–200.

Leitão M. C., Teixeira H. C., Barreto Crespo M. T. and San Romão M. V., 2000. Biogenic amines

occurrence in wine. Amino acid decarboxylase and proteolytic activities expression by

Oenococcus oeni. J. Agric. Food Chem., vol. 48, no. 7, pp. 2780–2784.

Session2, oral 12


Grapevine nutritional status under different soils and future expected

climate conditions

U. Leibar

1,4, I. Pascual

2, F. Morales

2,3, O. Unamunzaga

1 and A. Aizpurua

1

1Neiker-Tecnalia, Environment Quality Department. Bizkaia Technological Park. 812., Derio,

Bizkaia, Spain 2Universidad de Navarra, Plant Stress Physiology Group (Environmental Biology

Department), Associated Unit to CSIC, EEAD, Zaragoza and ICVV, Logroño. Faculties of

Sciences and Pharmacy, Irunlarrea 1, Pamplona, Spain 3Department of Plant Nutrition, Aula Dei Experimental Station, CSIC, PO Box 13034,

Zaragoza, Spain

Nutrition is a relevant issue for winegrape growers because it influences grapevine growth, berry

composition, as well as must and wine quality. In this work, we studied the effect of simulated

year 2100 expected climate conditions (CC; 700 ppm CO2, 28/18ºC, day/night and 33/53%

relative humidity, day/night) versus current conditions (Curr; 390 ppm CO2, 24/14ºC and 45/65%

relative humidity) on the nutritional status of grapevine (Vitis vinifera L. cv. Tempranillo) fruit-

bearing cuttings, grown under two water availabilities (well-irrigated vs. water deficit) and three

soil textures (41, 19 and 8% of soil clay content). Plants grown under CC had lower Ca and N

concentration in leaf blades than those grown under Curr at veraison and lower Zn and N at full

maturity. Such result was associated with an increased number of leaves, although there was not a

dilution effect due to a greater leaf biomass production. Leaf blades from droughted plants had

higher Na and Mn concentration at veraison and full maturity, respectively, compared with those

well-irrigated, mainly due to a dilution effect in well-irrigated plants. Well-irrigated plants

showed lower concentration of Mn and Fe, only under CC. Calcium and Mn showed higher

concentrations in more clayey soils at full maturity. Potassium concentration was higher in leaf

blades of well-watered-plants in comparison to those of water-stressed plants because of a higher

K mobility in moist soils, these differences being only significant at full maturity. Results suggest

a moderate influence of climate change, water availability and soil texture on leaf nutrient content

of grapevines.

Abbreviations: T – temperature; RH - relative humidity; CC - simulated year 2100 expected

climate conditions; Curr - current conditions; WA – water availability; WI - well-irrigated; WD -

water deficit; ST - soil texture; CEC - cation exchange capacity.

Acknowledgements: We thank Department of Economic Development and Competitiveness of

the Basque Government and Aragón Government (A03 research group) for financial support.

Urtzi Leibar was the recipient of a grant from “Fundación Cándido Iturriaga y María Doñabeitia”.

Authors thank A. Urdiain and M. Oyarzun (University of Navarre) for excellent technical

assistance and Institute of Sciences of Vine and Wine (Logroño, La Rioja, Spain) for dormant

cuttings supply.

Session2, oral 13


Simulating the effects of climate change on berry composition

using whole plant model

J. Zhu

1, P. Vivin

1, G. Gambetta

1, N. Ollat

1, , Z. Dai

1,* S. Delrot

1*


Climate change will affect various aspects of the wine industry and consequently challenge the

sustainability of grape production. Most studies investigating the effect of projected climatic

scenarios on grapevine focus on phenology, e.g. dates of flowering, veraison and maturity.

However, there are fewer efforts aimed at studying the response of berry composition to climate

change, which is essential in understanding how wine quality will be affected. Process-based

models hold the potential to fill this gap by integrating berry development and quality formation

with environmental factors. A novel grapevine model has been developed using the plant

modelling software GroIMP. The model integrates the most advanced algorithms on: 1) coupling

of photosynthesis and transpiration; 2) coordination of stomatal aperture, abscisic acid (ABA),

transpiration and root conductance (Tardieu–Davies model, Tardieu et al., 2015); 3) balance of

sugar loading and unloading via phloem sugar concentration (Baldazzi et al., 2013); 4) fruit

growth (Dai et al., 2008); 5) nitrogen economy model within plant architecture (Bertheloot et al.,

2011); 6) their interactions and feedback mechanisms. Whole plant xylem water potential and

phloem sugar concentration were dynamically simulated based on environmental conditions (e.g.

CO2, light, temperature, humidity, soil water content etc.). The xylem water potential and phloem

sugar concentration were subsequently utilized by the berry growth module to simulate berry

growth and sugar concentration. The model was calibrated through detailed experimental data and

validated through comparisons with the published literature through simulations under a variety of

virtual scenarios, e.g. different light and water stress conditions. The model simulations showed

that water stress and shading both reduce the carbon assimilation but have differential effects on

berry sugar concentration. Water stress reduces the xylem water potential and berry water import

leading to none or slow reduction in sugar concentration, while shading increases xylem water

potential and berry water import thus accelerating sugar concentration reduction.

Acknowledgements

We thank Drs Jochem B. Evers, Xinyou Yin, Francois Tardieu, Jessica Bertheloot for sharing

their model codes, and Drs Bruno Andrieu, Romain Barillot, Gilles Vercambre, Michel Genard,

Eric Lebon, Michale Henke for helpful discussions. We greatly acknowledge the financial support

of the INNOVINE project, grant agreement no.FP7-311775.

References:

Baldazzi V., Pinet A., Vercambre G., Benard C., Biais B. and Genard M., 2013. In-silico analysis

of water and carbon relations under stress conditions. A multi-scale perspective centered on fruit.

Frontiers in Plant Science 4.

Bertheloot J., Cournède P.-H. and Andrieu B., 2011. NEMA, a functional–structural model of

nitrogen economy within wheat culms after flowering. I. Model description. Annals of Botany

108: 1085-1096.

Dai Z., Vivin P., Génard M., 2008. Modelling the effects of leaf-to-fruit ratio on dry and fresh

mass accumulation in ripening grape berries. Acta Horticulture 803: 283-291.

Tardieu F., Simonneau T. and Parent B., 2015. Modelling the coordination of the controls of

stomatal aperture, transpiration, leaf growth, and abscisic acid: update and extension of the

Tardieu–Davies model. Journal of Experimental Botany 66: 2227-2237.

Session2, oral 14


Phenology variability, and predictions under climate change scenarios, of

Cabernet Sauvignon and Tempranillo cultivated in the Ribera del Duero

DO

M.C. Ramos

1, G.V. Jones

2, J. Yuste

3

1Dept Environment and Soil Science, Univeristy of Lleida, Lleida, Spain

2Dept Environmental Science and Policy, Southern Oregon University, Ashland, Oregon,

USA 3Instituto Tecnológico Agrario de Castilla y León, Valladolid, Spain

One of the most direct effects of climate change on grapevines is the change in onset phenology

and the length of the growth season, which has further influences on the final grape quality and

productivity. The knowledge and modeling of those changes may be a key tool to plan viticultural

management practices in the near future under climate change scenarios. The aim of this study is

the analysis of the variability in the dates of phenology affected by climate conditions and their

predictable changes under different climate change scenarios. The study is based on the

information provided by the Consejo Regulador of Ribera del Duero DO, referenced to four

vineyards, planted with Cabernet Sauvignon and Tempranillo, which are located in the central

part of the Ribera del Duero DO (Spain). The elevation ranges between 802 and 840 m. The

phenology dates referred to the stages C (budbreak), F (visible bunches), I (bloom), M (veraison)

and N (ripening) (according to the Baggliolini classification) were analyzed for the period 2004-

2015. These dates were related to climatic conditions recorded in the period in the meteorological

stations of Aranda de Duero. Average maximum and minimum temperatures, for the periods

March-April_15th, April_15th-May, June_1-20th, June_20th-Aug_10th and Aug_10th-Sep_30th,

considered as average periods between phenological stages (C–F; F-I; I-M and M-N), were used

as predictors. Changes in phenology dates were simulated for the periods 2030, 2050 and 2070

using the average changes predicted using 10 models integrated in the Coupled Model

Intercomparison Project (CMIP5) and for two Representative Concentration Pathways (RCP)

scenarios – RCP4·5 and RCP8·5. The results showed that increasing Tmin and Tmax for the

period before budbreak and between budbreak and bloom have significant effects on advancing

all phenological stages, with greater advances for the stages F, I and M. For the scenario RCP4.5,

the predicted advance of these stages ranged between 2.4 and 2.7 days and between 2.4 and 3.5

days for 2030 for both varieties; between 4.8 and 5.2 days and between 5.0 and 6.8 days for 2050;

and between 7.5 and 8.8 days and between 7.8 and 8.6 days for 2070, respectively for Cabernet

Sauvignon and Tempranillo. For the scenario RCP8.5 the differences between varieties were

smaller. The predicted advance of the stage F ranged between about 3.2 days for 2030 and more

than 10 days for 2070; the advance of bloom ranged between 4.6 days for 2030 and more than 10

days for 2070, and for veraison ranged between 3.1 days for 2030 and more than 10 days for

2070. The simulation showed that that harvest could be advanced, on average, up to 4 days under

the scenario RCP4.5 and up to 8 days for the scenario RCP8.5.

Keywords: bloom, budbreak, RCP4.5, RCP8.5, temperature, veraison.

Acknowledgments: authors thank the Consejo Regulador of Ribera del Duero DO by the vine data

and the AEMET by the climatic data.


SESSION 2 : Impacts of climate change

POSTER

Session2, poster 7


Identification of « dried fruits » molecular markers found in Merlot and

Cabernet-Sauvignon grapes and red wines

L. Allamy

1,2, P. Darriet

2 and A. Pons

2,3

1Château Latour, Saint-Lambert, Pauillac, France

2Université de Bordeaux, ISVV, EA4577, Unité de recherche OENOLOGIE, Villenave

d'Ornon, France 3Seguin Moreau, Cognac, France

In the 2000s, aromas of dried fruits, referring to prune, fig or cooked peach are found more and

more often in Bordeaux red wines. The markers responsible for these aromas related to the grape

maturity are unknown.

The gas chromatography coupled to olfactometry (GC-O) and mass spectrometry (GC-O-MS) and

GC-GC-O-MS analysis of musts and wines, that had shades of dried fruits aromas, allowed to

confirm the realness of odorant zones reminding of the aroma of the samples. The analysis by

GC-MS of number of musts and wines marked or not by dried fruits flavors show that the

furaneol (caramel), the (coconut, cooked peach), the (Z)-1,5-octadien-3-one (geranium) take part

in this aroma. Furaneol and γ-nonalactone are well known compounds in wines. On the contrary,

the influence of the (Z)-1,5-octadien-3-one is reported for the first time in musts from healthy

grapes. A quantification method of this ketone using SPME-GC-CI-MS was also validated in

terms of repeatability, linearity, and limit of detection. The perception thresholds in model

solution and must were determined.

The influence of the harvest date of Merlot and Cabernet-Sauvignon grapes on the aromas and

fine composition of musts and wines is also specified in experiences that have been made in the

vineyard. Moreover, we studied the incidence of winemaking processing of grapes that have been

late harvested, even with a withered appearance, on the flavor of wine. These field studies are

used to correlate the appearance of dried fruits nuances and the presence of molecular markers

identified in musts and wines from overripe grapes.

Session2, poster 8


Climate change in a Mediterranean grape-wine growing area:

understanding variation in varietal phenology, berry maturation and health

R. Biasi

1, E. Brunori

1, L. Salvati

2

1Department for Innovation in Biological, Agrofood and Forest systems (DIBAF), University

of Tuscia, Viterbo, Italy 2Consiglio per la Ricerca in Agricoltura e l’analisi dell’Economia agraria (CREA) – Soil-

Plant Interactions Research Centre (RPS), Rome, Italy

It is widely recognized that Vitis vinifera L. is a specie very sensitive to climate change, so that it

has been elected as a valuable bio-indicator. Climate is a key terroir determinant that affects

yearly productions, grape quality traits and, indirectly, resource management and vineyard agro-

ecosystem sustainability. Agriculture in the Mediterranean basin, that is one historical grape-

growing area, has been reported to be endangered owing to environmental risk factors as soil

consumption, land degradation, climate change. Here, the resilience of cultivated surfaces, i.e. of

vineyards, could represent a primary challenge for landscape and biodiversity safeguard,

ecosystem services preservation, historical and cultural value maintenance, as well as wine

industry economy assurance.

The study aim was to investigate the response to climate change occurred in a traditional grape-

wine producing area in central Italy (Latium region) in the recent past of some major national and

local grapevine varieties, through the elaboration of climate indices and evaluation of shifts in

phenology and productive behaviour.

To the aim historical series (1985-2014) for the main agro-climatic indices, i.e. Huglin, Winkler,

Fregoni, Cool night index, number of days above 30°C, number of days below -2,5°C, were

produced using data provided from on-farm climate stations. The tested varieties were the cvs

Merlot, Syrah, Cabernet sauvignon, Cabernet franc, Sangiovese, Chardonnay and Grechetto

white.

The effect of climate trends (at on farm–scale) has been analysed in terms of cultivar phenology,

vine yield and grape quality (berry chemical traits) for the vintages 1995-2014; to this porpoise

winery and yield registers have been used as data source.

The results highlighted for the study area an increasing trend for total thermal availability and a

decrease in daily temperature excursion. These changes proved to be correlated to the seasonal

grapevine growing cycle. In particular the cvs Syrah, Cabernet sauvignon, Grechetto white and

Chardonnay tend to postpone grape physiological and technological maturation, while the cv

Cabernet franc showed a reverse trend. Furthermore, grape technological quality proved to be

modify in the considered span of time, in particular in terms of total soluble solids in the berries at

the harvest time. The climate variability affected also berry health owing to its influence on

agrochemical need. In fact, the results showed that in the last ten years the berry sanitary state has

been heavily threated by phyto-pathogens (Plasmopora viticola and Uncinula necator) attacts.

Taken together these results suggest specific climate change adaptation techniques to cope with

climate risks. Under the most negative climate scenario, certainly more attention should be paid in

the management of plant diseases, in order to preserve the economical and environmental

sustainability of the production. Given that the impacts of climate change are not likely to be

uniform across all grapevine varieties, this evidence should address grape-growers to proper

present and future strategies aiming a sustainable viticulture.

Session2, poster 9


Climate vs grapevine pests and diseases worldwide:

The first results of a global survey

B. Bois

1,2,*, S. Zito

1 and A. Calonnec

3

1CRC – UMR Biogeosciences, Université Bourgogne Franche Comté / CNRS, Dijon, France 2Institut Universitaire de la Vigne et du Vin, Université Bourgogne Franche Comté, Dijon,

France 3INRA, UMR1065 SAVE, Villenave d’Ornon, France

*[email protected]

Climate change consequences are either studied by means of historical data sets of field

observations, controlled conditions experiments (mostly greenhouse or phytotrons) or using

modelling with historical or projected climate data as variable input. Yet, the extremely large

extension of viticulture worldwide offers the possibility to evaluate the consequences of climate

variability on many aspect of the grape/wine growing system. In order to identify the bulk risk

exposure to pest and diseases of vitiviniculture to climate, we initiated a global survey to retrieve

the most important diseases/pest in many grapegrowing regions worldwide. Data collected was

compared to the WorldClim gridded climate database to document the range of climate conditions

(average growing season temperature or rainfall, dryness index…) associated to each of the

reported disease/pest. The potential climatic-induced changes in a few examples grapevine

diseases/pests geography in 2050 is assessed using agroclimatic indicators projection in 2050

from 19 models, using the RCP 8.5 scenario

Session2, poster 10


Grape sustainability in western South America: present climate assessment

and climate change impact evaluation

N. Cortesi

1, A. Soret

1, N. Gonzalez

1, F.J. Doublas-Reyes

1, P.A. Bretonnière

1,

1Barcelona Supercomputing Center, Barcelona, Spain

Viticulture is sensitive to climate change. Projecting the climate on decadal time scales is a

valuable information for defining adaptive and mitigation measures on current wine regions. The

Maipo wine region, for example, will likely be subjected to a high temperature increase of about

2º C during next 50 years, as well as many areas in the tropical regions.

At present, many regions with a high expected climate change are also difficult to study because

of few or missing meteorological observations, few or no regional climate models available, high

bias in the reanalysis data or models, and/or strong local effects due to complex geographical

features. The western South America region is likely to experience significant impacts in the

coming decades and it was chosen as a case study of a highly problematic area for assessing grape

sustainability, due to a combination of the above mentioned limitations.

The aim of this study is to develop a methodology to identify potential areas for future wine

plantation and detect future changes of the grape sustainability in the current wine regions. Six

wine indexes were selected to identify the potential sites for grape plantation in 2050: the mean

monthly temperature, the temperature from October to April, the Winkler index, the Winter

severity index, the total annual precipitation and the precipitation from October to April. Such a

set of wine indexes was firstly evaluated for past climate (1986-2005) using temperature and

precipitation data from the ERA-Interim reanalysis dataset, and subsequently for future climate

(2031-2050), estimating the wine indexes by means of a multi-model, multi-member ensemble of

all the available CMIP5 global climate model simulations to follow a probabilistic approach and

to better estimate uncertainties. Simulations both for the emission scenario RCP2.6 and for the

RCP8.5 scenario were considered, to take into account the two more extreme emission scenarios.

The impact of climate change on each wine index was estimated as the difference between its

mean value for future climate (2031-2050) and its mean value for past climate (1986-2005).

Results of this study suggest that there are many potential areas with strong temperature and

precipitation trends where future climatic conditions will be favorable for wine production,

mainly due to widespread warming conditions in the tropical and extratropical regions, favoring

grape plantation in regions that actually are not apt for grape. However, the lack of high-

resolution data and models doesn't allow to study in detail specific sites, since local conditions

(elevation, orientation, vegetation, prevalent wind direction, nearby water bodies or human

activities, etc.) can greatly affect these results. Data and models can be partially adjusted to take

into account some of these local effects using empirical relationships, even in the absence of a

meteorological network in the area. The know-how developed for this study could also be applied

to other world regions where wine companies want to explore the viability of viticulture in the

coming decades.

Session2, poster 11


CELL, an agent based model for exploring spatial heterogenity influence of

climat change on Lobesia botrana development

E. Delay

1, A. Caffarra

2, H. Quenol

3

1Laboratoire GEOLAB Université de Limoges, Limoges, France

2ITK, Montpellier, France

3Laboratoir LETG-COSTEL, Rennes, France

The European Grapevine moth (Lobesia botrana) is one of the most noxious vineyard-pests in the

European and Mediterranean area. Its larvae feed on grapevine flowers and berries, and usually

cause considerable damage, also by facilitating saphrophytic infections to berries.

The biology of L. botrana has been investigated since the 80s. A number of studies has tested its

physiology and behaviour in experimental conditions (Hurtrel and Thiéry 1999), in field

conditions (Stockel et al. 1994), and using mathematical modelling techniques.

Whereas the modelling approaches that have been proposed in the literature are hetereogeneus

they generally focus on the phenology and population dynamics of L. botrana, rather than

analysing the role of spatial variability on its infestations and mating behaviour.

For this reason we propose here an agent based model (CeLL model), where we take into

consideration spatial effects on L.botrana infestation dynamics. Our aim is to gain further insight

into the processes and interactions occurring at the vineyard, population and individual level.

The use of agent based modelling allows us to integrate population dynamics within a spatial

frame (the vineyard) where individual insects act by following development, movement and

mating “rules”.

In its first version, CeLL (Confusion Landscape Lobesia) focused on the identification of

processes involved in pest infestations, necessary for the accurate simulation of infestation

dynamics, as observed by the Groupement de Développement Agricole (GDA) of the cru Banyuls

et des Albères. Here we attempt to obtain a more accurate simulation of the present situation in the

same region, and make projections for the future, by the following actions:

1. We refine CeLL simulations by using accurate temperature input data, obtained by

spatialising the high temporal frequency data from the TERVICLIM network

2. We apply climate change scenario to CeLL, to assess potential effects of climate changes

on infestation dynamics and integrated pest management strategies.

References :

Hurtrel B. and Thiéry D., 1999. Modulation of Flight Activity in Lobesia Botrana Den. & Schiff.

(Lepidoptera: Tortricidae) Females Studied in a Wind Tunnel. Journal of Insect Behavior 12 (2):

199-211. doi:10.1023/A:1020914800170.

Stockel J., Schmitz V., Lecharpentier P., Roehrich R., Torres Vila M., Neumann U., Brustis J.M.

and Pronier V., 1994. La confusion sexuelle chez l’eudémis Lobesia botrana (Lepidoptera

Tortricidae). Bilan de 5 années d’expérimentation dans un vignoble bordelais. Agronomie 14

(2):71-82.

Session2, poster 12


Sensitivity of berries ripening to higher temperature - Grape and wine

aromatic compounds

J. Drappier1, J. Wu

2, C. Thibon

1, P. Darriet

1, S. Delrot

2, P. Pieri

2, R. Rabagliato

1,

P. Redon1, L. Geny-Denis

1

1Université de Bordeaux, ISVV - EA 4577, Unité de Recherche Oenologie, Villenave

d’Ornon, France 2EGFV, Bordeaux Sciences Agro, INRA, Université de Bordeaux, Villenave d’Ornon, France

The grapevine is an important economical crop and very sensitive to climate changes and

microclimate. The observations of the last decades at a vineyard scale all agree to show the impact

of climate change on vine phenology, resulting in advanced harvest (Jones and Davis 2000).

Several authors found out that temperature affected metabolites, whereas only a few reported this

impact on aromatic compounds on grape and wine, although high temperature were suspected to

affect it negatively during ripening (Mira de Orduña 2010). It is well-known that the maturation

conditions of grape berries are closely related to both young wines quality and their conservation

and ageing capacity (hot vintages have resulted in wines with a lost typicité and precocious ageing

aromas). One of the goals to the HeatBerry project is to finely analyze physiological mechanisms

linked to the secondary metabolism in grapes, wine biochemistry and their modulation by

microclimate. A passive heating system in polycarbonate screens has been set up at the vineyard.

Field experiments showed 1-3 °C increase in berry temperature and were conducted on two

cultivars: Cabernet Sauvignon and Sauvignon Blanc (5 ranks of each compound of 5 ceps). The

experiment was repeated on the 2015 vintage. The heating system took place on June, periodically

from August to harvest berries juices were analyzed for ripening analysis. The results were in

accordance with previous studies. Microvinifications were performed on ripened (and over-

ripened for Cabernet Sauvignon) berries for the two cultivars. Firstly, the wines were tasted;

showing significant differences between wine from heated berries and non-heated berries.

Secondly, aromas precursors (Glut-3-SH, Cys-3-SH, Glut-3-SH-Al) and glutathione were

analyzed in berries. Analysis of varietals aromas, such as volatile thiols (3SH (3-sulfanyl-hexanol)

and 4-methyl-4-sulfanyl-pentan-2-one (4MSP)), were conducted on wines. Finally, the results are

expected to be in agreement with the tasting and will attempt to understand qualitative potential of

berries after a heated treatment. To conclude, this project aims to complete the lack of knowledge

on aromas and precursors sensitivity to temperature. Alternatively it is to give levers/tools for

viticulture adaption facing to climate change.

References :

Jones, Gregory V., and Robert E. Davis. 2000. Climate Influences on Grapevine Phenology,

Grape Composition, and Wine Production and Quality for Bordeaux, France. American

Journal of Enology and Viticulture 51 (3): 249–61.

Mira de Orduña, Ramón. 2010. Climate Change Associated Effects on Grape and Wine

Quality and Production. Food Research International 43 (7): 1844–55.

doi:10.1016/j.foodres.2010.05.001.

Keywords : grape, vineyard, Vitis vinifera, Cabernet Sauvignon, Sauvignon Blanc, microclimate, aromas, aromas precursors, temperature, climate change

Session2, poster 13


Multi-seasonal effects of warming and elevated CO2 on grape and wine

composition of mature, field grown Shiraz grapevines

R. L. Kilmister

1, D. Unwin

1, E. J. Edwards

2 and M. Treeby

1

1DEDJTR, Irymple, Australia

2CSIRO Agriculture, Adelaide, Australia

Increasing temperature has long been associated with negative impacts on important grape and

wine quality attributes such as colour. The primary driver of temperature elevation is higher

atmospheric carbon dioxide (CO2) concentrations. The effect of CO2 on plant composition varies

widely depending on plant species and cultivar and is expected to have a wide-ranging impact on

grape and wine composition. Field-based studies of the effects of elevated CO2 on grape and wine

composition have been conducted in the past, but have not previously been combined with the

control of air temperature. The combined effects of elevated CO2 and warming on grape and wine

composition are not fully known and are critical for adaptation to climate change.

To investigate this, open top chambers (OTC) that used an active heating system to elevate

temperature by 2oC above ambient (eT) were installed in a mature Shiraz vineyard managed to

current commercial practice. The OTCs were combined with a system to simultaneously elevate

CO2 (eCO2) around grapevines in the chamber to 550 ppm. The experiment consisted of a

complete factorial combination of ambient/elevated CO2 and ambient/elevated temperature. An

untreated open air (i.e. chamberless) control was also included. The experiment was laid out as a

randomised complete block design, with four replicates. The effects of eCO2 and warming on vine

growth and physiology are described in a partner presentation.

Measurements made on grapes sampled at harvest in the first two seasons suggest variable grape

composition responses. For example, grape phenolics in the first season were decreased by eT, but

were increased by eT + eCO2 in the second season. More subtle differences were observed in

tannin and anthocyanin composition and pH and titratable acidity in the free run juice. Wine made

from the first season’s grapes had distinct sensory properties that could be related to warming.

Seasonal influences are obviously important, particularly as the temperature elevation is relative

to ambient. But, as the vines acclimatise to the elevated atmospheric CO2 and warmer

temperatures, more consistent responses are likely to come to the fore over coming seasons.

Indeed, differences in the levels of non-structural carbohydrates are already becoming apparent

(see partner presentation), and flow on effects on shoot vigour etc can be expected. The

importance of those flow on effects in terms of the development of adaptation strategies remain to

be determined.

Session2, poster 14


Grape model implementation for studying the impact of climate change

L. Leolini

1, M. Moriondo

2, M. Donatelli

3, R. Confalonieri

4, M. Bindi

1

1Department of Agri-food Production and Environmental Sciences, University of Florence,

Italy 2 CNR-IBIMET, Florence, Italy

3Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria, CREA, Bologna,

Italy 4Department of Agricultural and Environmental Science, University of Milan, Italy

In recent years, the most traditional wine-making regions have been profoundly influenced by

climate change in terms of grape growth, development and yield. Indeed, the interaction between

changes in mean climate and variability expected in future scenarios will play a fundamental role

on grape yield and quality. In this case, higher temperatures are related to a shorter duration of the

grape growth cycle and lower yields. Moreover, the effect of heat stress during flowering

influences the next phenological stages in terms of reduced berry size and number.

In this context, crop simulation models can be considered useful tools for evaluating the non-

linearity of the interaction between mean climate change and extreme events on crop growth and

development. On this basis, the simplified grape model proposed by Bindi et al. (1997) was

updated to include the effects of mean climate and climate extremes on yield and implemented on

BioMA (Biophysical Model Application) software platform. BioMA simulation environment may

be an important tool for using the model in operational applications and for running it in target

areas. Additionally, the modular structure of the code allows an easier maintenance of the crop

domain and makes simpler the introduction of new implementations. The new processes

implemented consider i) the use of chilling unit requirement to improve the estimation of

dormancy release and bud-break date; ii) heat stress effect during grape flowering phase in order

to consider the influence of high temperatures on fruit set and final grape yield.

In this case, chilling unit model was tested on ten grape varieties using data from the northern part

of Italy. A better accuracy for bud-break date is showed in calibration and validation for the new

model (r=0.87; r=0.62) in respect to the original one (r=0.82; r=0.48). Moreover, a relationship

was found for defining the simulated trend between temperature and fruit set (r =0.69; p<0.05).

On these premises, future steps will concern i) the introduction of nitrogen balance that considers

nitrogen dynamics and uptake in response to higher temperature and water stress conditions and

ii) biomass partitioning in response to abiotic stress.

Acknowledgments

This project is included in the European Union’s Seventh Framework Programme under Grant

Agreement No. 613817.

References

Bindi M., Miglietta F., Gozzini B., Orlandini S., Seghi L., 1997. A simple model for simulation of

growth and development in grapevine (Vitis vinifera L.). II. Model validation. Vitis-

Geilweilerhof, 36, pp. 73-76.

Session2, poster 15


Optical and SAR satellite images potential for vineyard monitoring in the

climate change context

P. Loussert

1, S. Corgne

1, H. Quénol

1, A. Ortega

2

1LETG-Rennes COSTEL UMR 6554 CNRS, Rennes, France

2Facultad de Ciencias Agrarias UNCUYO, Mendoza, Argentina

The mitigation of climate change effects over vineyards area represents an important stake for

viticulture sustainability. However, it requires a fine spatial knowledge of terroir variability and

practices impacts on grapevine phenological cycle. Remote sensing appears to be an interesting

tool to study both of these aspects. Until now, studies revealed the potential of optical remote

sensing for mapping soil spatial variability, vine vigour and yield estimation at plot and inner-plot

scale (Hall et al., 2002). Some researches introduced the study of grapevine phenological cycle at

large and fine scale using optical or C-band SAR images (Cunha et al., 2010; Fraga et al., 2014;

David Ballester-Berman et al., 2012).

The aim of this work is to monitor grapevine phenology and its control over a viticultural

landscape in Mendoza (Argentina) by using in synergy a very high resolution spatial optical and

SAR dataset. Mendoza study area is one of the most extreme viticultural zone: high temperatures

and strong water deficit. In the climate change context of stronger water deficit, higher

temperatures and more storms in summer, a detailed knowledge of terroir functioning over the

phenological cycle is required. This will leads to define the best adaptation strategies at short/mid

term. All the data were acquired during the 2014-2015 campaign. A ground database was built

leading to a deep knowledge of local climate variability, soil types and viticultural practices

among 400 ha of vineyards. The grapevine phenological cycle was followed through LAI (Leaf

Area index) estimation by hemispherical images, phenological records at flowering, veraison and

maturity monitoring. The harvest dates and yields of each parcel were also recorded. Satellite

images are composed of 6 Dual pol TerraSar-X images (HH/VV), 5 Pléiades images (Bundle

mode) and 12 Landsat-8 images (OLI/TIRS).

The preliminary results of the multivariate and multitemporal analysis reveal the interest of using

both optical and SAR images to monitor grapevine development. Biophysical variables (LAI,

Fcover, NDVI, TSAVI…) derived from optical data and SAR parameters (σ0HH, σ0VV, Shannon

Entropy…) provide relevant metrics to emphasize the spatial and textural structure of the

vineyards and their temporal profiles, which leads to a better understanding of the phenological

variability over a wine-producing area.

References :

Hall, A., Lamb, D. W., Holzapfel, B., Louis, J., 2002. Optical remote sensing applications in

viticulture-a review. Australian Journal of Grape and Wine Research, vol. 8, 36-47.

Cunha, M., Marçal, A. R., & Rodrigues, A. 2010. A comparative study of satellite and ground-

based vineyard phenology. In Proc. 29th Symp. EARSeL, 68-77.

Fraga, H., Amraoui, M., Malheiro, A. C., Moutinho-Pereira, J., Eiras-Dias, J., Silvestre, J., Santos,

J. A. 2014. Examining the relationship between the Enhanced Vegetation Index and grapevine

phenology. European Journal of Remote Sensing, vol. 47, 753-771.

David Ballester-Berman, J., Garmendia-Lopez, I., Lopez-Sanchez, J. M., & Mangas-Martin, V. J.

2012. Analysis of the polarimetric response of vineyards at C-band. Canadian Journal of Remote

Sensing, vol. 38(3), 223-239.

Session2, poster 16


Influence of elevated temperature on fruit yield and grape composition of

thirteen Tempranillo grapevine accessions differing in cycle length

I. Pascual

1, M. Arrizabalaga

1, T. Fortún

1, H. Santesteban

1, M. Oyarzun

1, G. Hilbert

2,

J.J. Irigoyen1, F. Morales

3

1Universidad de Navarra. Plant Stress Physiology Group (Associated Unit to CSIC, EEAD,

Zaragoza and ICVV, Logroño) Department of Environmental Biology. Universidad de

Navarra, Pamplona, Spain 2EGFV, Bordeaux Sciences Agro, INRA, Université de Bordeaux, Villenave d’Ornon, France

3Estación Experimental de Aula Dei (EEAD), CSIC, Department of Plant Nutrition,

Zaragoza, Spain

The increase in air temperature projected within a climate change scenario can influence grape

ripening and must composition. In this regard, grapevine genetic diversity may be exploited to

maintain grape and wine quality under future warm conditions. The aim of this study was to

assess the effect of elevated temperature on the timing of phenological development, fruit yield

and grape composition of thirteen accessions of Tempranillo grapevine (Vitis vinifera L.), which

differ in their cycle length. Tempranillo selections 86, 1052, 336, 518, 501, 349, 280, 825, 807,

814, 318, 56, and 1084 (Government of La Rioja, Spain) were grown as own-rooted fruit-bearing

cuttings under greenhouse conditions. Two temperature regimes (24ºC/14ºC or 28ºC/18ºC,

day/night) were applied from fruit set to maturity. Plant phenology was determined as the number

of days that elapsed between fruit set and veraison, and between veraison and maturity. Fruit

yield, and technological and phenolic maturity parameters were determined at ripeness (total

soluble solids, TSS, between 21 and 23ºBrix). Grape pH, TSS content and skin total anthocyanins

were also analyzed at pre-veraison, mid-veraison, two weeks after veraison and ripeness. The

studied accessions of Tempranillo significantly differed in the number of days that elapsed

between fruit set and maturity (differences of up to 34 days). Accessions 349, 807, 814 and 1084

had the longest cycles, whereas 501 and 518 are among those with the shortest ones. These

differences were mainly observed in the elapsed time from veraison to maturity. Elevated

temperature reduced in 13 days, on average, the time to reach maturity (from fruit set), and had a

greater influence before the onset of maturity (elapsed time from fruit set to veraison) than after

(elapsed time from veraison to maturity). Bunch weight, berry size and number differed among

accessions. By contrast, elevated temperature only affected significantly berry size, decreasing its

caliber and weight. Regarding technological maturity, grapes grown under elevated temperature

had significantly lower titratable acidity, malic acid and tartaric acid concentration, as well as

higher pH values, for the same concentration of TSS (around 23º Brix). Differences among

accessions were only significant for malic and tartaric acids. At maturity, the concentration of

total anthocyanins in the must was significantly different among accessions. Curiously, accessions

807 and 1084, characterized by a long cycle, had the lowest levels of must extractable

anthocyanins. Interestingly, elevated temperature did not significantly modify must extractable

anthocyanins in eight out of thirteen accessions. In general, elevated temperature decreased must

colour intensity and increased hue (tonality). The evolution of pH, TSS and total skin

anthocyanins throughout grape ripening will be also analyzed.

Acknowledgments. This work was supported by Ministerio de Ciencia e Innovación of Spain

(MCINN AGL2014-56075-C2-1-R), European Union (INNOVINE Call FP7-KBBE-2011-6,

Proposal N◦311775), Aragón Government (A03 research group) and Asociación de Amigos de la

Universidad de Navarra (grant to M.A). Special thanks to A. Urdiain for his technical assistance.

Session2, poster 17


Climate change effects on phenology and yield of three white varieties

cultivated under rainfed conditions in the Penedès DO (NE Spain)

M.C. Ramos

1

1Dep Environment and Soil Science, Univeristy of Lleida, Lleida, Spain

This work investigated the relationship between vine phenology and production and climate in

vines of NE Spain as well as the potential effects of climate change. The study was carried out in

rainfed vineyards in the Penedès region, NE Spain. The main soil types are Typic Xerorthent and

Typic Calcixerepts and soil is bare most of the time. Vines were planted with Chardonnay,

Parellada and Macabeo varieties in a pattern of 3.1m between vines and 3.3 m between rows;

vines are orientated NNE-WSW on an average slope of 9%. Daily climatic data [maximum

(Tmax) and minimum temperature (Tmin) and precipitation (P) ] recorded at Els Hostalets de

Pierola (2.5 km far from the studied plot) were analysed for the period 1996 to 2012 as well as the

dates corresponding to budbreak (BB), bloom (BL), veraison (V) and harvest (H) for both

varieties and for the same period. The relationships between the phenological dates and climate

variables were analysed using a multiple stepwise regression. Changes in climate were simulated

using the 10 models integrated in the Coupled Model Intercomparison Project (CMIP5) and for

two Representative Concentration Pathways (RCP) scenarios – RCP4.5 and RCP8.5 for 2050 and

2070. Changes in the phenological dates and yield related to climate change under both scenarios

were evaluated.

The phenological dates differed between varieties up to 28 days, with high variability among

years with different climatic conditions. The three varieties responded in different way to

temperatures recorded between phenological stages. The variables that showed higher influence

on phenology were the average Tmin previous to BB, between BB and BL and between BL and,

as well as Tmax between BB and BL. The results showed, that phenology of Chardonnay was the

affected in lesser magnitude than Macabeo and Parellada, being the advance of veraison and

harvest higher than those of bloom for the three varieties. The projected change sin temperatures

could produce under the scenario RPC 4.5 an advance of veraison of about 4.7 days for

Chardonnay, 6.1 days for Macabeo and 7.3 days for Parellada for 2050, and up to 5.8, 10.3 and

8.3 days respectively for 2070. The projected changes in harvest dates could imply advances of

about 7, 9.7 and 15 days for 2050 and 8.4, 10.4 and 16.2 days for 2070, respectively for the three

varieties. Under the scenario RPC8.5, the predicted trends of maximum and minimum

temperatures for the RPC 4.5 scenario gave rise phenology advance about 30% higher for the

scenario 2050 and about 50% higher for 2070. The increase of temperature during the growing

season could also generate a decrease in yield. Based on the observed relationship between yield

and the average Tmax during the growing season and the temperature trends, the yield for

Chardonnay could be reduced up to 35% for the scenario RCP 4.5 and up to 45% for under

RCP8.5. For Parellada and Macabeo, the yield reduction could be higher than 57% and up to 70%,

respectively, for the scenario 2070 under RCP 8.5.

Keywords: bloom, budbreak, grape yield, RPC4.5, RPC8.5, temperature, veraison.

Acknowledgments: author thanks the METEOCAT by the climatic data and vinegrowers for the

vine informations.

Session2, poster 18


Expected Growing Season Temperature Increase in Eger wine district of

Hungary Based on Regional Climate Modelling

G. Sámson

1,4, B. Bálo

2*, M. Ladányi

3, Gy. Bisztray

2, N. Szobonya

2, R. Pongrácz

1,

J. Bartholy1

1Department of Meteorology, Eötvös Loránd University, Budapest, Hungary

2Department of Viticulture, Szent István University, Budapest, Hungary

3Department of Biometrics and Agricultural Informatics, Szent István University,

Budapest, Hungary 4Bortársaság Boltok Kft., Pécs, Hungary

*Corresponding author: Bálo. E-mail: [email protected]

Changing climatic conditions of Hungarian wine growing districs were studied previously on a

regional scale. Our goal was to give a more accurate estimation of the growing season’s

temperature conditions in the vineyards of Eger region (Northeastern Hungary) for the middle and

the end of the 21st century, focusing on two main parameters: the Heliothermic Index and the Cool

Night Index.

Daily minimum, maximum and mean temperature data series of three different sources were used:

1) automatic meteorological stations located in the vineyards, 2) E-OBS gridded database, 3)

PRECIS regional climate model outputs. The calculations were interpolated to one grid cell which

represents the entire region.

Daily mean temperature showed an increase of 0.5 °C in the past 50 years. Heliothermic and Cool

Night Index values also increased. The vineyards’ meteorological stations showed positive

anomalies in Heliothermic Index and Cool Night Index values compared to the E-OBS dataset.

For the 21st century, the climate model outputs suggest further decrease of the number of days

with low temperature values and a remarkable increase of the number of days with high and

extreme high temperature values, average minimum, maximum and mean temperature values,

Heliothermic Index and Cool Night Index values. The average daily mean temperature is

projected to be 14.7 °C at the end of the 21st century, which means an increase by 5.1 °C

compared to the 1961-1990 reference period. For the middle of the 21st century results predict an

average value of 2485 °C for the Heliothermic Index, and 14.1 °C for the Cool Night Index in an

”average” vineyard. For the end of the 21st century the projected average values of the

Heliothermic Index and Cool Night Index are 2944 °C and 16.8 °C, respectively.

Session2, poster 19


Estimating the Impact of Climate Change on Temperate, Subtropical and

Tropical Grape Growing Regions in Brazil

J. Tonietto

1, M.A.F. Conceição

2, S.R.M. Evangelista

3

1Embrapa Grape and Wine, Bento Gonçalves, Brazil

2Embrapa Grape and Wine/EVT, Jales, Brazil

3Embrapa Agriculture Informatics, Campinas, Brazil

Viticulture for table grape or wine production in Brazil was historically established in the extreme

South of the country, in temperate climate. More recently, new producer regions appeared in

South, Southeast and Northeast of the country, including subtropical and tropical type of climate

in the production scenario. Some studies characterized the Brazilian climate of production regions

in all types of climates. The potential impact of climate change on different grape growing regions

of Brazil needs to be evaluated to project investments, considering challenges and mitigation

actions, for the development of table grape and wine production in Brazil.

This work had the goal to estimate the potential impact of climate change related to viticulture

potential on different producing regions of Brazil that concerns temperate, subtropical and tropical

types of climates.

Thirteen producing regions in Brazil were studied: Campos de Clima da Serra, Serra Gaúcha,

Serra do Sudeste and Campanha in the state of Rio Grande do Sul; São Joaquim and Rio do Peixe

Valley in Santa Catarina state; Northwest region of Paraná state; Northwest region, Jundiaí and

São Miguel Arcanjo in São Paulo state; North and South regions of Minas Gerais state; and, São

Francisco Valley in Bahia and Pernambuco states. The methodology used a climatic database

series 1961-1990 as baseline period (Conceição et al., 2012). PRECIS (Low and High) and ETA

(Low, Midi and High) models of climate change were run for scenarios in 2025 and 2055. The

Heliothermal Index (HI), Cold Night Index (CI) and Dryness Index (DI) of the Geoviticulture

MCC System and the Zuluaga Index, were calculated. Indices for regions with viticultural

potential to produce more than one cycle/harvest per year were calculated also for autumn-winter

period of the year. The indices values, mapped in GIS for the total area of each region,

corresponds to the average of the region.

The results quantified an important climate change in all producing regions. Some will change

MCC climatic groups. Concerning classes of viticultural climate for CI, cool/temperate nights

tend do became temperate/warm nights. Regions with Cool class for HI will tend to disappear in a

long-term period in Brazil. Concerning Dryness Index, the study detected particular scenarios in

each region, consequence of the water balance in the climate change context. The Zuluaga index

showed that, in some regions, the potential for viticulture phytosanitary problems would rise with

climate change.

This climatic zoning will help to understand how to work on actions to mitigate the potential

impact of climate change on a medium and long-term period, in different scenarios for grape

growing and winemaking in Brazil.

Reference

Conceição, M.A.F. et al., 2012. Viticultural climatic zoning in temperate, subtropical and tropical

zones, Brazil: bases for estimating the impact of climate change. Proceedings of the IX

International Terroirs Congress, Dijon, v.3, 54-57.

Session2, poster 20


“HeatBerry”: sensitivity of berry ripening to higher temperature -

berry metabolism

J. Wu

1, J. Drappier

2, L. Geny

2, C. Thibon

2, S. Guillaumie

1, R. Rabagliato

2, R. Ghidossi

2,

P. Petrie3, M. Herderich

3, P. Darriet

2, S. Delrot

1, P. Pieri

1


2Université de Bordeaux, ISVV - EA 4577, Unité de Recherche Oenologie, Villenave d'Ornon,

France 3AWRI, The Australian Wine Research Institute, SA 5064 Glen Osmond, Adelaide, Australia

Aromas of wine are key components for quality and value, but recent observations show they are

usually negatively influenced by climate change in most viticultural areas. The presence and

amounts of aromas or aromas precursors in the mature grape berry are also known to be partly

determined by thermal conditions during the ripening period. On the other hand, simulations of

the impacts of climate change in temperate or Mediterranean-like areas indicate that the main

challenge for viticulture will result from much hotter ripening conditions. The aims of the

“HeatBerry” project are therefore to improve the understanding of secondary metabolism leading

to aromas precursors and aromas in grapevine berries and to assess its sensitivity to temperature,

mainly for higher temperature.

Manipulations of grape microclimate by the passive heating provided by open top screens and

localized greenhouse effect are an effective way to quantify the response to temperature in actual

field conditions, as long as other factors remain identical (Sadras et al., 2009, 2012). Field

experiments using open top polycarbonate screens were conducted on Cabernet Sauvignon and

Sauvignon Blanc vines during the 2014 and 2015 seasons in a Bordeaux vineyard, with

continuous control of air and berry temperature and solar radiation and occasional control of

growth and water status. The experiment was carried out from bunch closure to maturation and

berries were sampled periodically until the post-maturation stage; microvinifications were also

realized from mature berries. The results showed that the whole plant status was not changed by

the heating treatment while a 1-3 °C increase in berry temperature was observed. Sensory analysis

of the wines showed that bitterness, fullness and fruity character were influenced by the heating

treatment (see Drappier et al., this symposium). Therefore, this moderate heating of the berries,

which lies within the expected range of temperature increase associated with climate change,

might be sufficient for significant effect on aromas metabolism.

At least for some of the aromas and aromas precursors that are now well characterized in the

Cabernet Sauvignon and Sauvignon Blanc varieties, the project will attempt to work out the

metabolic network and key stages or factors which are actually sensitive to temperature. Analysis

of metabolic pathways will involve refined techniques in the biochemistry, gene expression and

transcriptome areas followed by a modeling approach.

Acknowledgements: We thank the Aquitaine Regional Council (CRA) and Interprofessional

Bordeaux Wines Council (CIVB) for funding the HeatBerry project and Bordeaux-Adelaide-

Geisenheim (BAG) alliance and Bordeaux Vine and Wine Institute (ISVV) for networking and

initiating the project.

References :

Sadras V.O. and Soar C.J. 2009. Shiraz vines maintain yield in response to a 2–4 ◦C increase in

maximum temperature using an open-top heating system at key phenostages. Europ. J. Agronomy

31, 250–258.

Sadras V.O. and Moran M.A. 2012. Elevated temperature decouples anthocyanins and sugars in

berries of Shiraz and Cabernet Franc. Austr. J. Grape Wine Res. 18, 115–122.

Sustainable grape and wine production in the context of climate change, Bordeaux-France, April 10-13, 2016


SESSION 5 : Ecophysiology for climate change

ORAL

Session 5, oral 22


Grapevine and climate warming: Duravitis program opens new breeding

strategies for temperature adaptation

L. Torregrosa

1*, A. Bigard

1,2,3, A. Doligez

2, D. Lecourieux

4, M. Rienth

1,2,5,6, N. Luchaire

1,2,

R. Chatbanyong1,2

, R. Shahood1,2

, J. Pillet4, L. Le Cunff

7, F. Lecourieux

4, B. Muller

2,

H. Ojeda3, P. This

2, A. Pellegrino

1, C. Romieu

2

1Montpellier SupAgro, Montpellier, France

2INRA, Montpellier, France 3INRA, Gruissan, France


5Fondation Jean Poupelain, Javrezac, France

6CHANGINS, Haute école de viticulture et d'oenologie, Nyon, Suisse

7 IFV, Montpellier, France

*Corresponding author: L. Torregrosa, [email protected]

The performance of grapevine, including productivity and wine quality is highly dependent on

climate. In the long term, genetic improvement is one major strategy that will support sustainable

grape production systems facing the announced climate changes. Unfortunately, the lack of

knowledge about the genetic mechanisms of grapevine adaptation to temperature limits the

efficiency of genetic improvement. In the last 5 years, we have performed an interdisciplinary

program aimed to: i) characterize the impact of an increase of temperature, sensed by the entire

plant or individual bunches, on the development and functioning of the plant (organogenesis,

biomass variation, berry metabolism), ii) identify the molecular mechanisms regulating the

response of vegetative and reproductive systems to heat stress and ii) develop tools to map QTLs

of plant and berry developments in duly controlled, stable, and contrasting environmental

conditions.

Performing high-throughput genomic analyses combined with the use of innovative experimental

models (fruiting cuttings, microvines), was critical to decipher the ecophysiological and molecular

mechanisms involved in the response of the vine to high temperatures. Temperature exerted

strongly different effects on the kinetics of vegetative or reproductive developments The data

revealed the central role of carbon balance in the plant response to thermal stress with critical

effects on the distribution of biomass within the plant and also changes in the primary (sugars,

organic acids) and secondary (phenolic compounds) berry metabolisms. Day and night

transcriptomic and proteomic signatures associated with heat stress in grapes were revealed,

highlighting key players of the temperature response in grape. Ultimately, tools were developed

for breeding new varieties adapted to warm temperatures including: i) a framework of Mivrovine

phenotypic analysis, ii) stable QTLs of grapevine development under various temperatures and iii)

innovative methodologies (RNAseq, proline assay and embryo rescue).

Capitalizing on these knowledge and tools, we are starting a new program to select cultivars with

limited accumulation of sugars in regard to qualitative compounds from either primary (organic

acids) or secondary metabolism (pigments, aromas).

Acknowledgments: This work was supported by the ANR-Genopole (project ANR-2010-

GENM-004-01), the foundation Jean Poupelain, the CNIV (Comité National des Interprofessions

des Vins à appellation d'origine) and the CIVB (Comité Interprofessionnel des vins de Bordeaux).


Session 5, oral 23


A Combination of Phenotyping, Genetic and Physiological Approaches to

Guide Breeding for Efficient Water Use in Grapevine

A. Coupel-Ledru

1,2, E. Lebon

1,2, A. Christophe

1,2, A. Doligez

2,3, T. Simonneau

1,2

1INRA, UMR 759 LEPSE, Montpellier, France

2Montpellier SupAgro, UMR 759 LEPSE, Montpellier, France

3INRA, UMR AGAP, Montpellier, France

Water scarcity associated with climate change particularly threatens the sustainability of

viticulture in most cultivated, drought prone areas. Breeding grapevine for reduced water use and

maintained production (that is high water-use efficiency) is therefore of major interest. This

requires a comprehensive knowledge of the physiological impacts of drought which are the most

influential on yield and quality. Special attention should be paid to those mechanisms involved in

the regulation of water status in plant tissues as the primary parameter affected by drought.

Transpiration rate, which has major influence on plant water status, together with water-use

efficiency, therefore require special attention in breeding programs.

To progress on the determinism of transpiration rate and water-use efficiency in grapevine, we

used a F1 progeny made of 188 genotypes from a cross between two widespread cultivars, Syrah

and Grenache, well-known for their contrasted water use. We showed the benefits of combining

quantitative genetics (for QTL detection) and physiological experiments to study this population

both in the vineyard and on potted plants. On the one hand, we developed an original

experimental design in the field coupled to geostatistical modelling to take into account the spatial

variability of soil water status inherent to vineyard conditions. This helped to identify significant

genetic variability for the traits of interest. On the other hand, we combined powerful phenotyping

tools on potted plants (high-throughput platform and controlled chambers) to control water deficit

conditions and improve QTL detection.

First, we found evidence that a dual physiological mechanism controls the decline of leaf water

status under drought with a key role for plant hydraulic conductance beside that of stomatal

control of transpiration. Contrasted combination of these two controls may lead to more or less

efficient maintenance of leaf water status in response to soil drying (i.e. iso- or anisohydric

behaviour). An indirect role of abscisic acid on stomatal conductance was also identified,

mediated by the downregulation of leaf hydraulic conductance, with a genetic variability which

correlated with genetic variation in iso- or aniso-hydric behaviour. We then revealed wide genetic

variations in nocturnal transpiration, which correlated with variations in whole plant water-use

efficiency (WUE), and identified corresponding genetic and physiological determinants. Lastly,

we showed some consistency between QTLs detected for daytime WUE in pots and in the

vineyard.

Beyond the potential interest of the QTLs detected in this study for breeding prospects, this work

demonstrated the interest of quantitative genetics to shed light on ecophysiological and

physiological processes.

Key-words: Water deficit, QTL, high-throughput phenotyping, isohydric, transpiration, hydraulic

conductance, abscisic acid, water-use efficiency, night time transpiration.

Acknowledgments: This work was supported by the French programs LACCAVE funded by the

“Institut National de la Recherche Agronomique” and ANR-09-GENM-024-002. AC-L. received

a PhD Grant from the French government.

Session 5, oral 24


Predicting the effects of drought and climate change on the composition

and extractability of flavonoids in Cabernet Sauvignon

T. Scholasch

2, J. Campbell

1,2, J. Kennedy

1,3

1Department of Viticulture and Enology, California State University, Fresno, USA

2Fruition Sciences Inc, Oakland, CA, USA

3Current affiliation: Constellation Brands, Inc., Madera, CA, USA

The purpose of the study was to monitor berry development as a function of site, vine water status and

climate in order to improve our understanding of the role played by climate change on secondary metabolites

relevant to wine quality. 35 wineries, consisting of 75 vineyard blocks, mainly located within the Napa

Valley were monitored throughout the 2015 growing season. Across the studied sites, there was a large

difference in climatic conditions, ranging up to 700 growing degree days. This large difference in heat

accumulation profiles, as well as heat events, in the local area allowed us to better understand the change in

phenolic concentration, composition and extraction profiles over a range of pedoclimatic areas. Vine water

status was measured throughout the season using sap flow sensors within the berry sampling area. For each

site, berry samples were collected at five times between veraison and commercial harvest. Skin and seed

exhaustive extractions (2:1 acetone:water) were done after the pulp was removed from the berry and the skin

separated from the seed. Partial extractions of berries was done on crushed whole berries in a 14% v/v

ethanol solution containing 100 mg/kg of SO2 in order to develop an understanding of phenolic extractability

over the space-time-climate continuum. Extracted phenolics were monitored using four separate HPLC

methods in order to provide information on low molecular mass phenolics as well as tannin concentration,

composition and activity. A discussion of climate change impact on premium wine production regions is

given in the context of the variation in phenolic chemistry observed in this study.

Keywords : extractability of flavonoids ; Cabernet Sauvignon; drought; polyphenols maturation kinetics

Session 5, oral 25


Summer and autumn, not winter, matter in dormancy of the grapevine

J.A. Considine

1, Y. Velappan

2, K. Meitha

2, J. Ratna

2, M.J. Considine

3,

1Institute of Agriculture, The University of Western Australia, Crawley, Australia

2School of Plant Biology, The University of Western Australia, Crawley, Australia

3School of Plant Biology and Institute of Agriculture, The University of Western Australia,

Crawley, Australia

Department of Food and Agriculture, Western Australia, Bentley, Australia,

University of Leeds, Leeds, United Kingdom

It is well-known, that while grape cultivars may be grown in low latitude climates, especially if at

altitude (Possingham, 2008), the normal phenology is greatly disturbed. Here we have begun a

preliminary assessment of cultivar performance in medium and low latitudes as a surrogate for a

warming climate, choosing two cultivars: Flame Seedless and Merlot. We included Merlot as a

standard so that we could match our observations to the seminal work on bud dormancy and state

by Pouget (1963).

Our observations show remarkable differences in state and dormancy according to the location of

cultivation. Bud state has been assessed as the duration from excision and planting to bud

emergence, water content, cell cycle state fraction (S, G …) and respiration.

In agreement with previous analyses, Merlot exhibited near synchronous entry into a state of deep

‘summer dormancy’ in mid-summer (Pouget, 1963). This became largely attenuated by late

autumn. Bud moisture content however remained low until immediately prior to field date of bud

burst (EL4, Coombe, 1995). Flame Seedless exhibited delayed entry into ‘summer dormancy’ did

not become as resistant to re-establishment of growth as did Merlot, nor did the buds become as

desiccated. These differences were climate correlated.

Remarkable changes in bud respiration and especially of respiratory quotient were noted through

the resting phases of the buds which suggest that novel metabolic processes may be involved (the

buds are normally hypoxic, Meitha et al., 2015).

These data will be discussed in terms of the manner in which climate-change may affect the

phenological cycle and productivity of the grapevine and the processes that may underlie the

observed disruption of the cycle in warm or low latitude climatic zones.

References Coombe B. 1995. Adoption of a system for identifying grapevine growth stages. Australian

Journal of Grape & Wine Research, 1: 104-110.

Meitha K, Konnerup D, Colmer TD, Considine JA, Foyer CH, Considine MJ. 2015. Spatio-

temporal relief from hypoxia and production of reactive oxygen species during bud burst in

grapevine (Vitis vinifera). Annals of Botany, 116: 703-711.

Possingham JV. 2008. Developments in the production of table grapes, wine and raisins in

tropical regions of the world. International Symposium on Grape Production and Processing,

785: 45-50.

Pouget R. 1963. Recherches physiologique sur la repos de la Vigne (Vitis vinifera L.: La

dormance des bourgeons et le mecanisme de sa disparation. Annales de L'Amelioration des

Plantes, 13 (Special Issue): 1-247.

Session 5, oral 26


How do rootstocks control scion water use efficiency ?

E. Marguerit

1, C. van Leeuwen

1, S. Delrot

1, N. Ollat

1


Water is the main limiting factor for yield in viticulture. Improving water use efficiency (WUE) in

viticulture is an important issue in the context of climate change. Genetic variability of WUE in

grapevine is partly due to rootstocks (Iacono et al., 1998). The objective of the present work is to

analyze the genetic determinism of shoot growth and WUE induced by the rootstock under water

deficit conditions.

A mapping pedigree consisting of 138 F1 individuals, derived from the inter-specific cross of V.

vinifera Cabernet Sauvignon × V. riparia Gloire de Montpellier, was used as rootstock. Cabernet-

Sauvignon was the scion grafted on each genotype of this population. The experiment was carried

out in pots, in a greenhouse. Water deficit intensity was evaluated daily by weighing each pot

individually with a 150 scale platform. Irrigation was applied daily in order to keep all the pots at

the same water content. After 10 days without any water deficit, a progressive water limitation

was applied for 10 days, then followed by a stable water deficit stress for 15 days. Pruning

weight, root and aerial dry weight and transpiration were recorded during three years.

Transpiration efficiency (ratio between aerial biomass and transpiration, TE) was calculated and

13C measured in leaves formed during the period without any water deficit and those formed

during the period of stable water deficit.

A large variability was observed within the studied population. QTL analysis was then performed

for all the traits studied. These results demonstrated that growth regulation of the scion by the

rootstock is determined genetically. The genetic architecture of biomass accumulation and water

use efficiency were at least partially independant. WUE-related traits were mediated exclusively

by rootstock genetic variability, rendering the model more complex. No QTLs common to TE and

13C were identified, supporting the hypothesis of independent genetic architectures for these two

traits. This suggests that interpretation of 13C is not straightforward to study when trying to select

plants with a high WUE (Condon et al., 2004), particularly in grapevine rootstock breeding

programmes (Flexas et al., 2010). The QTLs detected for TE in multi-year and multi-water status

analyses were colocalized, suggesting that the genetic architecture for TE is stable in all

environments and thus potentially easier to use for breeding purposes.

Acknowledgments : The authors wish to thank the Aquitaine Regional Council and the CIVB

(Conseil Interprofessionnel des Vins de Bordeaux) for their financial support.

References:

Condon AG, Richards RA, Rebetzke GJ, & Farquar GD, 2004. Breeding for high water use

efficiency. Journal of Experimental of Botany, 55,407,:2447-2460.

Flexas J, Galmés J, Gallé A, Gulias J, Pou A, Ribas-Carbo M, Tomàs M, Medrano H, 2010.

Improving water use efficiency in grapevines: potential physiological targets for biotechnological

improvement. Australian Journal of Grape and Wine Research 16,s1, 106-121.

Iacono F, Buccella A, Peterlunger E, 1998. Water stress and rootstock influence on leaf gas

exchange of grafted and ungrafted grapevines. Scientia Horticulturae, 75,1–2, 27-39.

Session 5, oral 27


Will grapevine pathogens adapt to climate warming? Temperature reaction

norms of life-history traits in grapevine downy mildew

C.E.L. Delmas

1, L. Delière

1, F. Delmotte

1

1INRA, UMR 1065 SAVE, Villenave d'Ornon, France

Plant pathogens are a significant constraint to agriculture and are challenged, along with their

hosts, to climate changes. While the influence of climate on pathogen impacts on their hosts have

been reviewed (Garrett et al., 2006), pathogen adaptation to climatic changes is still unclear.

However, the adaptive potential of plant pathogens to abiotic conditions is one of the most

important predictors of the magnitude of climate change impact on agro-ecosystems (Garrett et

al., 2006). Despite the applied importance of studying the response of grapevine pathogens to

climate warming, we still lack experimental data on current adaptation to temperature and

pathogen’s evolutionary potential facing climate changes.

We conducted a common garden experiment using populations of the biotrophic grapevine

pathogen Plasmopara viticola collected on Chardonnay in northern and southern vineyards

showing contrasted climatic conditions. Clonal replicates of 70 genetically distinct isolates were

assessed for aggressiveness (quantitative traits of pathogenicity) at 12°C, 18°C and 24°C.

We found highly significant phenotypic plasticity to temperature of northern and southern

populations, significant genetic adaptation especially in the cold environment and significant

‘genotype x temperature’ interaction. We analysed reaction norms for a range of quantitative traits

of pathogenicity and performed a quantitative genetic analysis (QST vs. FST) to understand the

evolutionary processes underlying these results. Our findings show that grapevine downy mildew

has a high genetic variation with high plasticity for temperature, which is therefore unlikely to

limit its adaptation to climate warming.

Acknowledgments: This study has been carried out with financial support from the French

National Research Agency (ANR) in the frame of the Investments for the future Programme,

within the Cluster of Excellence COTE (ANR-10-LABX-45). This study was also supported by

the FP7 - European Commission (“Innovine”, FP7/2012–2013: FP7-311775).

References :

Garrett KA, Dendy SP, Frank EE, Rouse MN, Travers SE, 2006. Climate change effects on plant

disease: genomes to ecosystems. Annu. Rev. Phytopathol., 44, 489-509.


SESSION 5 : Ecophysiology for climate change

POSTER

Session 5, poster 21


Hydraulic connections: Modeling shoots hydraulic architecture of

grapevine to apprehend leaf-scale gas exchanges and WUE in complex

canopies

R. Albasha

1 and E. Lebon

1

1INRA, Laboratoire d’Ecophysiologie des Plantes sous Stress Environnementaux,

Montpellier, France

Although grapevine (Vitis vinifera) is reputed for its high adaptability to low water availability

conditions, global warming and the resulting aleatory water deficit events has raised concerns in

developing new training systems adapted to the changing climate context (Medrano et al., 2012).

Such training systems are thus called to optimize water use while preserving the production

quantity and quality.

In this study, the Functional-Structural Plant Models (FSPM) approach was used to estimate the

grapevine gas exchange dynamics resulting from different training systems under water deficit

conditions. The cornerstone of this work is the simulation of the stomatal conductance gs at the

leaf scale as a function of both the local micro-climate conditions and the plant/soil water status.

gs is simulated as a function of the net assimilation rate (An), vapor pressure deficit (VPD) and

inter-cellular CO2 concentration (Ci) as described by Leuning (1990). The soil/plant water status

effect on gs is accounted for by relating gs to the leaf water potential ΨL according to the empirical

approach (Damour et al., 2010). ΨL is related to the collar water potential ΨC (which represents

the averaged soil water potential in the root zone) using three methods of different degrees of

complexity: (1) ΨL is considered uniform among all the leaves and is equal to ΨC (assuming thus

that the stem conductance in negligible); (2) ΨL is function of ΨC and varies locally with the

transpiration flux density (E) but no hydraulic connection is considered between the leaves; (3) ΨL

is function of ΨC and E with leaves being hydraulically connected using a complete description of

the shoot hydraulic structure of the plant.

The results of this study aims at providing answers to leaf-scale physiological responses of

grapevine under water deficit conditions for different canopy structures. The resulting model

could be used to assist training systems design to optimize water use efficiency.

Key words: Vitis vinifera, hydraulic architecture, stomatal conductance, water deficit, training

systems.

Acknowledgments

This work was carried out as part of the EU project INNOVINE (FP7-KBBE-2012-2016, grant

no. 311775)

References

Damour, G., Simonneau, T. Cochard, H., Urban, L., 2010. An overview of models of stomatal

conductance at the leaf level. Plant Cell Environ., 33, 1419 – 1438.

Leuning, R., 1995. A critical-appraisal of a combined stomatal-photosynthesis model for C3

plants. Plant Cell Environ., 18, 339 – 355.

Medrano, H., Pou, A., Tomás, M., Martorell, S., Gulias, J., Flexas, J., Escalona, J. M., 2012.

Average daily light interception determines leaf water use efficiency among different canopy

locations in grapevine. Agricultural water management, 114, 4 – 10.



Water deficit affects proanthocyanidin composition during ripening in

Cabernet Sauvignon (Vitis vinifera L.) grape skins

A. Cáceres-Mella

1, L. Villalobos

1, C. Pastenes

1

1Department of Agricultural Production, Faculty of Agronomical Sciences, University of

Chile, Santiago, Chile

Controlled water deficit is a common practice in several wine regions mainly because it can

influence the chemical composition of the grape with an expected positive effect in tannins

content (Kennedy et al., 2002). Additionally, water availability is under threat upon the climate

change, particularly in Mediterranean viticulture. Even though water scarcity and its impact on the

grapevine physiology have been widely reported, the effect on the proanthocyanidin composition

has been barely assessed. Here, we have investigated the effect of water stress on this particular

aspect in Cabernet Sauvignon grape skins throughout the ripening process.

The assay was carried out on own rooted Vitis vinifera plants cv. Cabernet Sauvignon in a

commercial vineyard located in the Maipo Valley, a warmer valley in central Chile, during 2014

growing season. Three irrigation treatments were established. Irrigation treatments begun few

days before veraison throughout the season, roughly maintaining midday stem water potentials

values of (T1) Ψ = -0.8 MPa; (T2) Ψ = -0.9 MPa and (T3) Ψ = -1.0 MPa.

Chemical analyses for total phenols, tannins and anthocyanins were assessed by

spectrophotometry. The fractionation of grape skin proanthocyanidins was made according to

their polymerization degree by the use of Sep-Pak tC18 cartridges. Mean degree of polymerization

and proanthocyanidin composition was performed by acid-catalysis in the presence of

phloroglucinol using HPLC-DAD.

Chemical composition of the grape skins was affected by the irrigation regimes. The content of

total tannins decreased throughout ripening. Approximately 30 days before veraison, their content

increased again, but more pronounced in the most restrictive treatment (T3). The fractionation of

proanthocyanidins by Sep-Pak tC18 cartridges showed a decrease in the monomeric fraction

during ripening. Also, the oligomeric fraction showed an erratic behavior throughout ripening. As

for the polymeric fraction, there was an increase during ripening, reaching at harvest a higher

concentration of flavan-3-ol polymers in the most restrictive treatment (T3). Only a change in the

concentration, but not in the proportion of the different flavan-3-ol fractions, was observed

between watering treatments. The grape skins at harvest showed a higher mean degree of

polymerization, a higher content of (+)-catechin and a lower content of (-)-epicatechin in T3.

Clearly, water deficit increases the phenolic composition of the grapes suggesting an increase in

grape quality.

Acknowledgments: Fondecyt Postdoctoral Grant N° 3140269 (Conicyt-Chile)

References:

Kennedy et al. 2002. Effect of maturity and vine water status on grape skins and wine flavonoids.

American Journal of Enology and Viticulture, vol. 53, 4, 268-274.



Regulated water deficit and its effect on phenolic composition and sensory

characteristics of Cabernet Sauvignon wines

A. Cáceres-Mella

1, M. I. Talaverano

2, L. Villalobos

1, C. Pastenes

1

1Department of Agricultural Production, Faculty of Agronomical Sciences, University of

Chile, Santiago, Chile 2CICYTEX-Technological Institute of Food and Agriculture-INTAEX, Badajoz, Spain

Regulated deficit irrigation is a common practice in several wine regions mainly because of the

well-known effect on wines (Casassa et al., 2015). The effect of climate change could affect water

availability, especially in warmer valleys, affecting the grape composition and then the wine

quality. For that reason, the influence of controlled water deficit on phenolic composition and

sensory characteristics in Cabernet Sauvignon wines were investigated in a warm viticultural

region from Chile.

The wine was obtained from grapes of own rooted Vitis vinifera L. plants cv. Cabernet Sauvignon

subjected to three irrigation treatments which begun few days before veraison, throughout the

season, roughly maintaining midday stem water potentials values of (T1) Ψ = -0.8 MPa; (T2) Ψ =

-0.9 MPa and (T3) Ψ = -1.0 MPa. The commercial vineyard was located in Maipo Valley, and the

assay carried out during the 2014 growing season.

Chemical analyses for total phenols, tannins, anthocyanins, color intensity and CIELab

coordinates were assessed by spectrophotometry. The fractionation of proanthocyanidins was

made by the use of Sep-Pak tC18 cartridges. The anthocyanins and proanthocyanidin composition

was carried out with HPLC-DAD. Temporal dominance sensation (TDS) and descriptive analysis

was performed using a sensory panel consisting of 13 judges.

Chemical composition of wines was affected by the irrigation regimes. The wines from the most

restrictive treatment (T3) showed a higher concentration of total phenols, total tannins and total

anthocyanins with differences in the chromatic properties. T3 wines resulted in a higher color

intensity, lower L* value and higher C* value. Regarding to the anthocyanin composition, the

most restrictive treatment resulted in a higher concentration in glucosylated anthocyanins such as

delphinidin-3-glucoside, peonidin-3-glucoside and malvidin-3-glucoside as well as the acetylated

anthocyanins cyanidin-3-acetilglucoside, petunidin-3-acetilglucoside and malvidin-3-

acetilglucoside.

The fractionation of proanthocyanidins by Sep-Pak tC18 cartridges showed that the most watered

treatment (T1) presented a higher content of flavan-3-ol monomers. Still, only a change in the

concentration, but not in the proportion of the different flavan-3-ol fractions, was observed

between treatments. The wines from the most restrictive treatment showed a higher mean degree

of polymerization, a lower content of (+)-catechin and a higher content of (-)-epigallocatechin.

The differences in chemical composition influence the sensory properties of wines. Wines from

the most restrictive treatment presented more red fruits, less acid and higher mouth-feel

properties. Our results suggest that water deficit increase the phenolic composition, increasing the

sensory quality of wine.

Acknowledgments: Fondecyt Postdoctoral Grant N° 3140269 (Conicyt-Chile)

References:

Casassa et al. 2015. Regulated deficit irrigation alters anthocyanins, tannins and sensory

properties of Cabernet Sauvignon grapes and wines. Molecules, vol. 20, 5, 7820-7844.



Irrigation effects about must´s aromatic compounds of cv Albariño –

Galicia (Spain)

J.J. Cancela

1, M. Fandiño

1, J.M. Silvestre

2, B.J. Rey

1, M. Vilanova

3, I.M. Caldeira

2

1GI-1716, Dep. Agroforestry Engineering, Univ. Santiago de ComposteLA, Lugo, Spain

2INIAV-IP, Dois Portos, Portugal

3Misión Biológica de Galicia-CSIC, Pontevedra, Spain

The interannual climate variability in the Rías Baixas AOC has generated the need to explore new

management strategies (irrigation) that allow managing water stress in a vigorous variety as

Albariño. The lack of previous studies on the effects of irrigation (Fandiño et al, 2012; Martinez et

al, 2013) and the aromatic components of Albariño (Zamuz and Vilanova, 2006; Vilanova et al,

2007) as a whole, have led us to propose a study about the effects of the irrigation on the main

free aromatic components of Albariño must.

During 2014, it was performed the monitoring of cv Albariño, in a commercial plot area from O

Rosal (Rías Baixas AOC), in Fornelos (Pontevedra). The vineyard was planted in 1996 on

standard 110-R with trellised vines. The plantation frame was 3 m between streets and 2 m

between plants (1667 plants by ha) and the rows were oriented east-west. The irrigation was

performed with two drip irrigation systems: surface (DI), with two emitters per plant (4 L h-1) and

subsurface (SDI) with 2 L h-1 per lineal meter. In total, have been applied irrigation in 13 days,

with 4 hour daily (DI-66mm, SDI-33mm). Two replicates per treatment were established,

including a control treatment (Rainfed), with 7 plants per block and repetition. During the harvest,

the production parameters were determined. In addition, must samples were obtained for the

determination of grape quality parameters (GAP, Total acidity and pH) and the main aromatic

families using GC-FID and GC-MS, on the premises of INIAV-IP (Dois Portos-Portugal). Prior to

aromatic analysis has been made liquid-liquid extraction, using the standard 4-nonanol (Botelho,

2008; Botelho et al., 2010).

The results have shown no significant differences among irrigation treatments due to the

important rainfall in 2014 (724 mm) and have not been exceeded values of steam-leaf water

potential of -0.5 MPa. However, high values were obtained in SDI treatment for three aromatic

components, suggesting that in years with extreme weather conditions, the irrigation strategy

could have influence in the flavor profile obtained in each treatment.

Acknowledgments: RTA2011-00041-C02-02

References:

Botelho, G. (2008). Characterisation of the aroma components of clonal grapes and wines from

Aragonez and Trincadeira Vitis vinifera L. cultivars. Vila Real, 2008. Tese de Doutoramento.

Botelho, G., Mendes-Faia, A., Clímaco, M. C. (2010). Characterisation of free and glycosidically

bound odourant compounds of Aragonez clonal musts by GC-O. Analytica chimica acta, 657(2),

198-203.

Fandiño, M., Cancela, J.J., Rey, B.J., Martínez, E.M., Rosa, R.G.,Pereira, L.S. (2012) Using the

dual-Kc approach to model evapotranspiration of Albariño vineyards (Vitis vinifera L. cv.

Albariño) with consideration of active ground cover. Agric. Water Manage. 112, 75-87.

Martínez, E. M., Rey, B. J., Fandiño, M., Cancela, J. J. (2013). Comparison of two techniques for

measuring leaf water potential in Vitis Vinifera Var. Albarino. Ciência e Técnica

Vitivinícola, 28(1), 29-41.

Vilanova, M., Zamuz, S., Vilariño, F., Sieiro C. (2007) Effect of terroir on the volatiles of Vitis

vinifera cv. Albariño. J. Sci. Food Agric., 87, 1252-1256.

Zamuz, S., Vilanova, M. (2006) Volatile composition of the Vitis vinifera Albariño musts

according to geographic area from Rías Baixas AOC (Spain). Ital. J. Food Sci., 3 (18), 323-328.



Grapevine root growth under water stress and its relationship to root water

uptake

L. Zhang

1, I. Merlin

1, G. Gambetta

1


It is known that plant growth and development are greatly influenced by water availability and

uptake. In the context of global warming, viticulture is increasingly focused on developing new

rootstocks that facilitate adaptation to drought. Water stress is known to modify root structure and

function, but little is known regarding how genotypes differ in their ability to maintain water

uptake and root growth under stress. Physiological, anatomical, and genetic characteristics of

water transport across roots were studied in two rootstocks considered as low-medium

(RGM, Vitis riparia) and highly (110R, Vitis berlandieri x Vitis rupestris) drought resistant.

Rootstocks were grown in rhizotrons under well-watered or water-stressed conditions, and the

growth rate of individual roots, changes in anatomical structure, as well as aquaporin (VvPIP)

gene expression were evaluated.

Individual root growth rate is very plastic and although water stress reduces root growth on

average, individual root growth rate is incredibly variable. We observed growth rate differences

between cultivars under well-watered conditions with the roots of 110R having a faster growth

rate than RGM. However, under water deficit conditions these differences collapsed and the roots

from both genotypes grew at a similar speed associated with a higher degree of suberization in

exodermis as well as endodermis. The expression of seven VvPIP genes was analyzed, among

which VvPIP1;1 and VvPIP2;4 were the most highly expressed. We consistently observed that the

expression of VvPIP1;3;5 and VvPIP2;1 were genotype-dependent. VvPIP2;3 and VvPIP2;4 were

influenced by drought treatment but in an opposite direction. VvPIP2;4 was correlated with root

growth rate but in a genotype specific fashion. Further experiments need to be conducted,

especially in combination with changes in root hydraulic conductivity in order to provide a better

understanding on how root structure, growth, and water uptake respond to water stress and

contribute to drought tolerance.



Non-invasive NIR spectroscopy for in-field grapevine water assessment

M.P. Diago

1, J. Tardáguila

1*, A. Bellincontro

2, M. Scheidweiler

3, M. Stoll

3

1Instituto de Ciencias de la Vid y del Vino (Universidad de La Rioja, Gobierno de La Rioja,

CSIC) Finca La Grajera, Logroño, La Rioja. Spain 2Department for Innovation in Biological, Agro-food and Forest Systems, Postharvest

Laboratory (DIBAF), University of Tuscia, Viterbo, Italy 3Department of General and Organic Viticulture, Hochschule Geisenheim University,

Geisenheim, Germany

The most important wine regions in the world are located in areas which are seasonally dry with

high evaporative demand and low water availability. These conditions are expected to be

accentuated in the context of climate change and global warming. Increased temperatures and

heterogeneous precipitation patterns are forecast, and optimized irrigation emerges as one of the

main strategies to steer quality grape production. In this framework, the implementation of

optimized irrigation based on fast, reliable, comprehensive indicators, becomes a priority in

agricultural research worldwide.

NIR spectroscopy is being increasingly used to better understand biological systems, by means of

studying distinctive water absorption bands. In this work, NIR spectroscopy has been tested under

field conditions to explore its capability to assess grapevine water status non-invasively, from a

moving vehicle.

The trial was carried out in an experimental Riesling vineyard located close to Geisenheim

(Germany) during season 2014. Two different grapevine water status regimes (stressed and non-

stressed) were imposed. At two timings, bunch closure and pre-harvest, contactless measurements

of individual leaves of the mid upper part of the canopy, with a NIR spectrophotometer (1100-

2100 nm) mounted on an all-terrain vehicle (ATV) moving at 5 km/h were acquired at midday.

Measurements with the NIR device were taken from a distance of 25 cm from the canopy.

Simultaneously, stomatal conductance (gs) was measured with a porometer on the same leaves

monitored with the NIR device. NIR spectra were analysed using partial least squares (PLS) and

principal component analysis (PCA). Significant regression models (R2 > 0.95, p<0.05) with gs

were built. The first two principal components accounted for 99% of the variation and

successfully differentiated the stressed and non-stressed samples.

These first results are promising and evidence the capability of non-invasive NIR spectroscopy to

assess the vineyard water status on-the-go, and to become a potential practical tool to drive

irrigation scheduling decisions in viticulture in the short term.

Keywords: water stress; irrigation scheduling; stomatal conductance; on-the-go.

Acknowledgments: The work leading to these results has received funding from the European

Union under grant agreement nº610953.



Towards genome-wide association studies under abiotic stress in Vitis

vinifera

A. Doligez

1, L. Le Cunff

2, T. Flutre

1, A. Launay

1, S. Nicolas

3, T. Lacombe

1, C. Romieu

1,

A. Fodor2, D. Ahmed

1, G. Berger

1, Y. Bertrand

1, M. Roques

2, P. This

1, J.-P. Péros

1


2IFV, UMT GenoVigne, Montpellier, France

3 INRA, UMR GV, Gif-sur-Yvette, France

Genome-wide association studies have proven their efficiency to decipher the genetic

determinism of traits of agronomic interest in several plant species. In order to perform such

studies in grapevine, we first designed an association panel of 279 V. vinifera cultivars from the

French National Grapevine Germplasm Collection (Domaine de Vassal, INRA, France). It is

composed of three subgroups of 93 cultivars representing the three main genetic pools, which

differ in use and geographical origin: wine West, wine East, table East. This panel exhibited a

good genetic and phenotypic representativeness of the whole collection. Linkage disequilibrium

extent was quite small, 43 Kb for a corrected r2 predicted value of 0.2, emphasizing the need for

several dozen thousands markers to achieve powerful genome wide association studies. The

second step consisted in dense genotyping of this panel using a 18K SNP Infinium chip and

genotyping by sequencing (GBS). While the first method provided useful genotypes at 12K SNPs,

about 100K SNPs are expected using GBS with ApeKI. Data processing is in progress and this

resource will be made available to the scientific community. The third step consists in

phenotyping this panel for traits of interest. Vines were planted in a randomized block design at

Le Chapitre Research Vineyard (Montpellier SupAgro, France). Traits related to yield (cluster and

berry weights) and phenology (maturity date) were measured in three years within the DLVitis

program. Then within the Innovine program, grass was used as a cover crop between rows in the

whole trial and part of the design was irrigated to obtain two levels of water availability. In

addition to yield and phenology traits, berry composition (sugars, acids, anthocyanins, tannins and

aromas), pruning weight and adaptation to drought (delta C13) have been measured during two

growing seasons under both water availability conditions. This association panel, together with

the accumulated data, represent highly valuable resources for genetic studies in grapevine. We are

calling for an international collaborative effort to use such a panel in field and greenhouse trials to

address questions on adaptation to changing environments.

Acknowledgments: INRA, DLVitis (ANR-08-GENM-02), UMT Geno-Vigne, Innovine (EU FP7

n° 31177).



Consequences of elevated temperatures during ripening on the biosynthesis

of monoterpenols in grape berries

E. Duchêne

1, G. Butterlin

1, N. Jaegli

1

1UMR 1131, INRA - University of Strasbourg, Colmar, France

The general increase in temperatures due to climate change will impact the temperatures during

grapevine ripening not only because an advance of the dates of veraison towards the warmer

periods of summer but also because on the same date, the expected temperature will be higher in

the future. Simulations using the A1B IPCC scenario showed for the Alsatian grape growing

region (Colmar, France) that the increase of mean temperatures during the 35 days after véraison

could be approximately 5 °C higher in 2040-2070 for Riesling and Gewurztraminer than in the

present years (Duchêne et al, 2010). The effect of high temperatures on berry color (Mori et al,

2007) or on berry acidity (Kiewer,1971; Duchêne et al, 2014) is well documented. Cool

temperatures are often empirically associated with enhanced wine flavors (Tonietto and

Carbonneau, 2004) but experimental data are very scarce (Bureau et al, 2000).

The objective of the present work was to quantity the effect of elevated temperatures during

ripening on the biosynthesis of monoterpenols. The molecules of this family, exemplified by

geraniol and linalool, are responsible for floral aromas (Lilly of the valley, Rose, …) found in

grapes and wines. Fruitful cuttings of Riesling and Gewurztraminer were grown during three

years in growth chambers under two temperatures regimes after véraison: 15°C night/24°C day

(Low temperatures, LT) and 21°C night/30°C day (High temperatures, HT). In 2014, genotypes

progeny from a Riesling x Gewurztraminer cross were also included in the experiment. The

monoterpenol content of the berries was quantified at several time points. In these results, high

temperatures impaired the synthesis of linalool, whereas the geraniol content was not affected.

Acknowledgments: these experiments were financially supported the INRA métaprogramme

ACCAF in the frame of the LACCAVE Project.

References:

Bureau S.M., Razungles A.J., Baumes R.L., 2000. The aroma of Muscat of Frontignan grapes:

effect of the light environment of vine or bunch on volatiles and glycoconjugates. J. Sci. Food.

Agric. 80, 2012-2020.

Duchêne E., Huard F., Dumas V., Schneider C., Merdinoglu D., 2010. The challenge of adapting

grapevine varieties to climate change. Clim. Res. 41, 193-204

Duchêne E., Dumas V., Jaegli N., Merdinoglu D., 2014. Genetic variability of descriptors for

grapevine berry acidity in Riesling, Gewürztraminer and their progeny. Aust. J. Grape Wine Res.

20, 91-99

Kliewer W.M., 1971. Effect of day temperature and light intensity on concentration of malic and

tartaric acids in Vitis vinifera grapes. J. Am. Soc. Hortic. Sci. 96, 372-377

Mori K., Goto-Yamamoto N., Kitayama M., Hashizume K., 2007. Loss of anthocyanins in red-

wine grape under high temperature. J. Exp. Bot. 58, 1935-1945

Tonietto J., Carbonneau A., 2004. A multicriteria climatic classification system for grape-growing

regions worldwide. Agric. For. Meteorol. 124, 81-97



Flavonoid interaction with grape chitinase:

natural and innovative system for plant defence induction

A. Filippi

1, E. Petrussa

1, S. Passamonti

2, A. Scaloni

3, V. Čurin Šerbec

4, U. Rajčević

4 and

E. Braidot1

1Dipartimento di Scienze Agrarie e Ambientali, Università di Udine, Udine, Italy

2Dipartimento di Scienze della Vita, Università di Trieste, Trieste, Italy

3Istituto per il sistema produzione animale in ambiente Mediterraneo, CNR,

Napoli, Italy

4Blood Transfusion Centre of Slovenia, Zavod RS za transfuzijsko medicino, Ljubljana,

Slovenia

Grapevine (Vitis vinifera L.) has a high nutritional value in the human diet, since it is a rich source

of polyphenols, vitamins and secondary metabolites. Due to their extensive cultivation, grapevine

varieties are sensitive to a great number of pathogens. These infections provoke heavy damages to

plants and yield losses, finally affecting wine quality. The spread of diseases is generally

controlled by applications of chemical pesticides. This controversial use/abuse of pesticides has

recently been questioned, particularly under the light of the new nature-friendly trend of

agricultural practice management; particular attention has been payed on the pesticide use

reduction in favour of the natural plant defence system induction, using natural moieties.

In the present study, an anti-bilitranslocase antibody (anti-BTL Ab), previously used to recognize

proteins involved in flavonoid binding (transport), cross-reacted against microsomal proteins,

obtained from red grape berry skin. Among all the proteins recognized, by means of 2-DE

electrophoresis, a pathogenesis-related (PR) protein was recognized and unequivocally identified

by mass-spectrometry analysis as a IV class chitinase. Interestingly, the in vitro chitinolytic

activity, assessed by both spectrophotometric and fluorimetric assays, was modulated in both

commercial pure chitinase (from S. griseus) and grape microsomal extract, by two different

flavonoids: quercetin (flavonol) and catechin (flavanol). These results highlighted the role of

flavonoids not only as antioxidants or direct antimicrobic effectors, but also as modulators of

plant growth and plant response to biotic stress. Implication of the present suggestion has been

also discussed in the terms of the environment health and reduction of pesticide distribution.

(abstract 251 parole)



How database used to calibrate phenological process-based models can

affect simulations under climate change scenarios?

I. Garcia de Cortazar-Atauri

1, E. Neethling

2, 5, L. De Rességuier

3, G. Barbeau

2, A.K. Parker

4,

H. Quenol5, C. van Leeuwen

3

1INRA, US1116 AGROCLIM, Avignon, France

2INRA UE 1117, UVV, Beaucouze, France


4Lincoln University, PO Box 85084, Lincoln, New Zealand

5CNRS/Université Rennes 2, UMR6554 LETG-Rennes-COSTEL, Rennes, France

Phenology is considered as the first biological indicator of this change. Consequently, modeling

phenology to provide accurate simulations is essential to correctly predict the timing of

development in the future. In this context, the choice of database to calibrate the model can highly

impact the results when these models are used under a wide range of climate conditions (Jochner

et al., 2013).

In this study we examined the impact of databases and their origin on the accuracy of simulation

of flowering and veraison for the grapevine (Vitis vinifera L.) under current and future climatic

conditions. We compared the results of calibration and cross- validation of several classic

phenological models (Growing Degrees Days, Chuine, Sigmoid, Beta function – Wang and Engel

and Richardson) for two different varieties (Cabernet Franc and Merlot) using different datasets :

1) Dataset1: a dataset from a network of temperature sensors at a fine scale where phenology was

also observed at each of the locations of the temperature sensors (11 to 90 different points); 2)

Dataset2: an historical dataset (at least 20 - 30 years) from a plot located in the same area as the

network , 3) Dataset3: a dataset obtained from other locations in France (Phenoclim database).

Cross tests of the best model calibrated with each dataset on the other sites were conducted to

assess the effect of the choice of database on the model output for each of these stages (flowering

and veraison) at different scales. Initial results showed that the database used to calibrate different

models could influence model parameters. The best models calibrated with each database will be

used to quantify phenology evolution under future climatic conditions on several sites in Europe.

PMP software (Chuine et al., 2013) was used to achieve all calibrations and simulations.

Results obtained will further our understanding of how to improve the quantification of

uncertainties and to better define which type of database is best suited to calibrate a model.

References:

Jochner, S. et al., 2013. Can spatial data substitute temporal data in phenological modelling? A

survey using birch flowering. Tree physiology 33, 1256–1268. Chuine, I. et al., 2013. Plant Development Models, in: Phenology: An Integrative Environmental

Science. Springer, pp. 275–293.



Regulated deficit irrigation on cv. Touriga Nacional in the Douro

Demarcated Region, Portugal - Physiological responses, productivity and

quality effects on grapes

I. Gonçalves

1, A. Morais

1, B. Teixeira

1, P. Santos

1, R. Soares

2, C. Carlos

1

1Associação para o Desenvolvimento da Viticultura Duriense, Godim, Portugal

[email protected] 2Companhia Geral da Agricultura das Vinhas do Alto Douro SA, Portugal

The weather and climate conditions are crucial for the success of any agricultural system, since

they influence the adaptation of the cultures to certain regions, control the quantity and quality in

a large scale and contribute, in an ultimate analysis, to the economical sustainability. This way,

the understanding on tolerance, resistance and adaptation mechanisms of the plants towards

adverse environmental conditions is extremely important, making possible the adequacy of the

plants growth conditions and the optimization of the production and quality of several cultures.

Douro’s Demarcated Region, located in the northeast of Portugal, is characterized by a typical

Mediterranean climate, with hot and dry summers, which induce water deficit and thermal and

radiative stress, influencing physiological processes, production and quality parameters of the

grapevine. These conditions acquire a growing relevance, especially under a climate change

impact scenario, as demonstrated in recent studies conducted in the region (Jones, 2013). In

southern Europe, increasing in air temperature and decreasing in precipitation is expected,

reflected both in lower annual totals as in longer dry periods. While soil water availability is

reduced, some physiological processes can be limited or even stopped, canopy photosynthetic

capacity is strongly committed and many leaves may become prematurely senescent. Therefore,

there is a need to improve the crop water use efficiency, based on physiological indicators, which

provide additional information about plant water status. To fulfil this need, an experimental

design was conducted during 2015 in a commercial vineyard located in ‘Cima Corgo’ sub-region

(Demarcated Douro Region) including three water treatments: 1) 'Rain-Fed'; 2) 'Regulated deficit

irrigation – RDI’ (25% of ETc); and 3) 'Regulated deficit irrigation – RDI’ (50% of ETc),

established since 2002. The aim of this study was to understand better the impac of the different

water regimes on the physiology, productivity and quality parameters of cv. Touriga Nacional.

For this purpose, an evaluation of several parameters was done including predawn leaf water

potential (Ψpd), productivity and qualitative parameters such as titratable acidity, pH, probable

alcohol and phenolic compounds (total tannins, total anthocyanins and total polyphenols). The

results obtained in 2015, a year with scarce precipitation (320 mm between November and

August), with several peaks of temperatures, resulting in intense stresses symptoms, showed that,

in both RDI modalities, the productivity (Kg/plant) was improved (RDI2: 20%, RDI3: 33%),

increasing berry weight, but without compromising quality parameters. Concerning these lasts,

RDI modalities did not reduce phenolic compounds (no significant differences were found) and

probable alcohol content were enhanced at harvest time.

Keywords : Climate change conditions- Water deficit - Vitis vinifera - Physiology - Quality -

Douro

References:

Gregory Jones, 2012. "Uma avaliação do clima para a Região Demarcada do Douro: Uma análise

das condições climáticas do passado, presente e futuro para a produção de vinho". Book




Aromatic discrimination of Vitis vinifera L. cv. Sauvignon blanc clone

Assessment of aromatic and enological potential

W. Goupil

1, A. Lusson

2, C. Thibon

3,4, D. Forget

1, P. Darriet

4

1INRA-Unite Experimentale Viticole, château Couhins, Villenave d’Ornon, France

2Chambre Départementale d’Agriculture de la Gironde, Bordeaux Cedex

3INRA, ISVV, USC 1366 Œnologie, Villenave d’Ornon, France

4Université de Bordeaux, ISVV - EA 4577, Unité de Recherche Oenologie, Villenave d'Ornon,

France

A significant characteristic of Sauvignon blanc clones most widely planted at present is their early

technological maturity. However, in the context of climatic change, they will not be suitable for

the production of dry white wines in the early-ripening soils of Bordeaux appellation.

In this context, aromatic potential of Sauvignon blanc clones was monitored during grape ripening

from the clone bank of the Chateau Couhins INRA during 2012 and 2013 vintages. Doing so,

concentrations of volatile thiol precursors (cysteine S-conjugate and glutathione S-conjugates),

glutathione, and flavanols were determined at several harvesting dates in berries and in must

before alcoholic fermentation. Then microvinifications were performed on selected Sauvignon

blanc clones that were highly aromatic and later-ripening than the existing commercial standards

(19 clones considered in total). Volatile thiols, glutathione, and flavanols content were assayed as

well as wine sensory analysis was organized with a professional panel. Results obtained for the

two years monitored showed that the clones had specific, stable aromatic and enological

characteristics.

Using these clones, decommissioned 20 years ago as too late, now could be a promising approach

for adaptation of vine material in a context of climate change.

Keywords: Vitis vinifera, Sauvignon Blanc, clone selection, volatile thiols, aromatic potential.



Physiological and Genetic Control of Vigor in a Ramsey x Riparia Gloire de

Montpellier Population.

I. Hugalde

1, C. Agüero

2, S. Riaz

2, N. Romero

2, A.V. Nguyen

2, J. Fraga

2, H. Vila

1,

A. McElrone2, A. Walker

2

1Estación Experimental Agropecuaria Mendoza, INTA., Mendoza, Argentina

2Dept. Viticulture and Enology, UC Davis, Davis, USA

Rootstocks can be a valuable tool for viticulturists, conferring numerous advantages, among

which vigor control is important. This research studied the F1 progeny from a cross between

Ramsey and Riparia Gloire de Montpellier, rootstocks that confer high and low vigor,

respectively. We hypothesized that vigor, defined as canopy biomass, correlates with growth rate,

leaf area, biomass partitioning, chlorophyll content, and whole plant hydraulic conductance; and

that these variables could be associated with genetic markers. We evaluated 138 seedlings from

this cross, three replicates each, for 60 days in a greenhouse at UC Davis, California. Each plant

was pruned to a single shoot and watered daily. After day 45, selected genotypes were subjected

to water deficit (50% of soil water content). Shoot growth rate, leaf area and dry biomass were

measured for the complete population, while hydraulic conductance, stomatal conductance, water

potential and chlorophyll content were measured for a subset. The progeny showed transgressive

segregation and significant differences between small, intermediate and big plants. Correlations

between vigor vs. growth rate, LA (Leaf Area) and biomass partitioning indices were highly

significant (p=0.00001). A PCA analysis showed a strong role for shoot growth rate, SLA

(specific leaf area) and biomass partitioning indices for vigor determination. Under water stress,

larger plants showed less specific hydraulic and stomatal conductances, indicating higher

sensibility upon drought. Significant QTLs for LA, SLA and partitioning indices were found on

chromosomes 1, 4, 16, and 5; accounting for 20% of explained variability for LA, and from 10 to

14% of explained variability for SLA and partitioning indices. For quantitative characters, where

positive feedbacks can cause large effects, low but statistically significant explanatory levels turn

vital.

This study converges in the construction of a mechanistic, functional and dynamic model that

describes plant growth, identifying key variables that may play important roles in determining

canopy size simulating growth under different ambient situations.

This study continues by addressing root hydraulic conductance, vigor confer by grafting with a

common scion, and further QTL mapping.



Direct impact of high temperatures on grapevine berry development: a

merge transcriptomic, proteomic and metabolomic survey

F. Lecourieux

1, C. Kappel

2, P. Pieri

1, J. Charon

1, J. Pillet

4, S. Claverol

3, J. Lunn

5, G. Hilbert

1,

C. Renaud1, M. Bonneu

3, E. Gomès

1, S. Delrot

1 and D. Lecourieux

1*


2Institut für Biochemie und Biologie, Universität Potsdam, Potsdam, Germany

3Univ. Bordeaux Segalen, Plateforme Protéome, Bordeaux, France

4Department of Biochemistry and Molecular Biology, University of Malaga, Spain 5Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany


Among various environmental factors, temperature is a major regulator affecting plant growth,

development and fruit composition. The grapevine reproductive development and the berry

organoleptic properties are both highly influenced by temperature. The molecular mechanisms

involved in grapevine berries tolerance to high temperatures are poorly understood. To better

characterize the sensitivity of berries to the microclimate, high temperature conditions (+ 8°C)

were locally applied to clusters from Cabernet Sauvignon fruiting cuttings at three different

developmental stages. Samples were collected 1, 7 and 14 days after treatment and subjected to

transcriptomic (NimbleGen arrays), proteomic (Label Free LC-MS/MS) and metabolic analyses.

Results showed dramatic and specific physiological changes in developing grape berries exposed

to heat stress (HS), according to the developmental stage and the stress duration. The HS delayed

the onset of véraison and strongly impacted anthocyanin contents at maturity. It also significantly

affected the primary metabolism with modifications observed in the concentration of amino acids,

organic acids as well as with a strong reduction in shikimate and several sugar phosphate

metabolites contents. A deep remodelling of both transcriptome and proteome in stressed berries

can explain these observations. More than 7000 genes and 2000 non-redundant proteins were

found deregulated upon HS. A Genome Ontology category enrichment analysis indicated that the

most affected processes belong to stress responses, protein metabolism, primary and secondary

metabolisms. Others categories are also well represented: photosynthesis, cell wall, hormone

metabolism, RNA, DNA, signalling and transport. Based on these omic data, several putative key

players of the HS response were selected and their functional characterization initiated. Our

results highlighted the role of VvGOLS1 (galactinol synthase) and VvHsfA2 (heat stress factor) in

the HS-dependent accumulation of galactinol, putatively acting as a signalling molecule (Pillet et

al., 2012). The role of two transcription factors in triggering the HS responses is under

investigation, through the combination of complementary approaches (CRES-T, stable grapevine

transformation, RNAseq, VIGS).

Taken together, our results highlight the intrinsic capacity of grape berries to perceive heat stress

and to build adaptive responses through the mutual action of many key players.



Climate change conditions (elevated CO2 and temperature) and UV-B alter

grape ripening rates and impact berry composition

J. Martínez-Lüscher

1,2, F. Morales

2,3, G. Hilbert

1, J. Aguirreolea

2, M. Sánchez-Díaz

2,

S. Delrot1, I. Pascual

2, E. Gomès

1


2Universidad de Navarra, Grupo de Fisiología del Estrés en Plantas (Departamento Biología

Ambiental), Unidad Asociada al Consejo Superior de Investigaciones Científicas, EEAD,

Zaragoza e Instituto de las Ciencias del Vino y de la Vid, Logroño, Pamplona, Spain 3Estación Experimental de Aula Dei, CSIC, Depto. Nutrición Végétal, Zaragoza, Spain

Atmospheric carbon dioxide (CO2) and temperature levels are expected to increase in the next

decades. In addition, changes in climate as well as changes in stratospheric ozone concentration

may affect the exposure the viticultural regions to UV-B. This will most certainly affect berry

ripening rates and berry composition at harvest, potentially impacting wine quality. In this work,

greenhouse experiments were designed and performed to analyze the combined effects of increase

temperature, CO2 and UV-B levels on leaf physiology, berry ripening rates and berry composition

(sugars, acids flavonoids) at harvest. Three UV-B doses [0, 5.98 and 9.66 kJ/(m2·d)] and two

CO2–day/night temperature regimes (390 μmol/mol CO2–24/14°C, and 700 μmol/mol CO2–

28/18°C) were imposed on Vitis vinifera cv. Tempranillo fruit-bearing cuttings from fruit set to

maturity.

The results show that photosynthetic rates were higher under elevated temperature/high CO2

regime (700 μmol/mol CO2–28/18°C), however high levels of UV-B down regulate carbon

fixation rates, although a transient recovery took place at veraison. Photosynthetic and fruit

ripening rates were always correlated throughout berry maturation, and the hastening effect of

elevated temperature/high CO2 regime was attenuated by high UV-B radiation doses. Regarding

berry quality buildup and final (at harvest time) composition, elevated temperature/high CO2

regime decrease the time necessary to reach technological maturity (sugar to acid ratio) but

decreased anthocyanin content at harvest; while high UV-B doses slowed down berry ripening

(particularly sugar accumulation) and up-regulated flavonol and anthocyanin biosynthesis.

In conclusion, UV-B radiation, which modulates leaf carbon fixation rates, sugar accumulation

and flavonoid biosynthesis in berries may partially alleviate the deleterious effects of elevated

temperature and high atmospheric CO2 on berry composition at harvest. This study illustrates the

complexity of the interactions that exist between stress factors related to ongoing climate

modifications, and points out the importance of using combined stress approaches to investigate

the impact of predicted future climate conditions on grapevine physiology and grape berry

ripening.

Acknowledgments: This work was supported by a grant the Asociacíon des Amigos de la

Universdad de Navarra to J. M-L, FP7 KBBE-2011-6-311775 INNOVINE and grants from the

Conseil Régional d’Aquitaine and the Gobierno de Navarra.



Phenotypic variability for phenology among wild Vitis genotypes

N. Ollat

1, L. Bordenave

1, J.-P. Tandonnet

1, S. Decroocq

2, S. Delrot

1


2INRA, UMR BFP, Villenave d'Ornon, France

Between and within each species of the genus Vitis, there is a great variability for many traits

related to the adaptation to biotic and abiotic stresses. If the variability within the species Vitis

vinifera is well characterized in respect to the stages of development and phenology (Parker et al.,

2013), the one existing between other Vitis species is much less described. In the context of

adaptation to climate change, the interest of these Vitis species to create new vine varieties

resistant to major diseases should include phenological properties and adaptation to abiotic

stresses. The work presented here summarizes the main results obtained for the main phenological

stages within a hundred wild Vitis representing 20 different species. The different genotypes were

investigated as scions and as rootstocks in two different projects. The phenological stages, bud-

burst, flowering, veraison, were recorded for 3 consecutive years. A difference of more than 60

days was noted for bud-burst and ripening stages for the varieties studied as scions, while not

exceeding 15 days when varieties were used as rootstock. The results are very well correlated

from one year to another, demonstrating the strong genetic control of these phenological

parameters. Phenological characteristics of the rootstock are not transmitted to graft by the

rootstock. Nevertheless the roostock affects the phenology of the scion. The genetic variability for

phenological stages of the scions within the genus Vitis could be useful for breeding purpose in

order to combine disease resistance and adaptation to climate change. The "rootstock" effect could

contribute, with other viticultural practices, to the adaptation to climate change when the change

of scion variety is problematic.

Acknowledgments: These studies were performed with the financial support of the Conseil

Interprofessionnel du Vin de Bordeaux and by UE in the frame of ERA-PG 074B GRASP

GRAPE WINE project

References :

Parker, A., de Cortázar-Atauri, I.G., Chuine, I., Barbeau, G., Bois, B., Boursiquot, J.-M., Cahurel,

J.-Y., Claverie, M., Dufourcq, T., Gény, L., Guimberteau, G., Hofmann, R.W., Jacquet, O.,

Lacombe, T., Monamy, C., Ojeda, H., Panigai, L., Payan, J.-C., Lovelle, B.R., Rouchaud, E.,

Schneider, C., Spring, J.-L., Storchi, P., Tomasi, D., Trambouze, W., Trought, M. and van

Leeuwen, C., 2013. Classification of varieties for their timing of flowering and veraison using a

modelling approach: A case study for the grapevine species Vitis vinifera L. Agricultural and

Forest Meteorology 180, 249-264.



How climate change may affect grapevine susceptibility to Botrytis Bunch

Rot?

C. Pañitrur-De la Fuente

1, H. Valdés-Gómez

3, C. Acevedo-Opazo

1, N. Verdugo-Vásquez

1,

M. Araya-Alman1, J. Roudet

2, M. Lolas

1, Y. Moreno

1, M. Fermaud

2

1Universidad de Talca: Facultad de Ciencias Agrarias, Talca, Chile

2INRA, UMR 1065 SAVE – ISVV, Bordeaux, France.

3Universidad Católica de Chile, Departamento de Fruticultura y Enología,Santiago, Chile

Botrytis Bunch Rot (BBR) is a major fungal disease of grapevine worldwide due to the

necrotrophic fungus Botrytis cinerea. The pathogen presents a complex life cycle in the vineyard,

with a great genetic and phenotypic variability and various infection pathways, all highly

dependent on meteorological conditions. B. cinerea can reduce both yield and wine quality,

especially a loss of sensory quality perceptible from a severity threshold of 5% rotted berries at

harvest. Thus, in the context of climate change and possible grower adaptation by changing of

cutivar, it is necessary to better know the susceptibility of the main grapevine varieties to this

disease and what new cultural strategies may be adopted. Grapevine growers are considering

possible adjustments in their management to maintain the wine typical quality features despite

global warming, such as increasing the bunch number per vine, interfering with grapevine

phenology and/or introducing new cultivars. However, what about the grapevine diseases

according to the cultivar(s) introduced? That is why a study was carried out, under two contrasting

weather conditions, to evaluate and compare the susceptibility of different cultivars to Botrytis

Bunch Rot (BBR). In the Bordeaux region, several studies confirm that the climate scenario for

the next 50 years will be characterized by lower rainfall and higher temperatures. These

conditions may be considered are similar to the current climatic conditions observed in other

grapevine areas in the world, such as the Central Valley of Chile, which may be considered as

close to a future climatic scenario for the Bordeaux region. Then this study allowed us to compare

13 cultivars in terms of susceptibility to BBR under two different climatic conditions: i) near

Bordeaux in France and ii) in the Talca region (Central Valley) in Chile. The study was repeated

for three and two consecutive seasons near Bordeaux and Talca, respectively. The BBR

development in untreated vines by anti-Botrytis fungicides was evaluated at harvest. The results

showed, in general, a similar susceptibility classification of the cultivars in both locations.

However, the cultivars develop less BBR in the Talca region compared to Bordeaux, due mostly

to the differences in climatic conditions. Thus, in the future, adaptation strategies may be

orientated by adapting the cultivar choice according to the disease susceptibility, taking into

account that the BBR risk might tend to decrease in the Bordeaux area according to the climate

change context.



Polyphenomics based on UPLC-QqQ-MS for deciphering the genetic

bases of grapevine response to drought

L. Pinasseau

1, A. Verbaere

1, M. Roques

1,2,3, E. Meudec

1, A. Vallverdù-Queralt

1, L. Le Cunff

3,

J.P. Péros4, A. Ageorges

2, N. Terrier

2, J.C. Boulet

1, N. Sommerer

1, V. Cheynier

1

1Plate-Forme d’analyse des polyphénols, UMR1083 SPO, INRA, Montpellier, France

2Equipe BCP2, UMR1083 SPO, INRA, Montpellier, France

3IFV Pôle national matériel végétal, UMT Génovigne, Montpellier, France


Phenolic compounds represent a large family of grape secondary metabolites, essential for the

quality of grape and wine and playing a major role in plant defense against biotic and abiotic

stress. Phenolic composition is genetically driven but also greatly affected by environmental

factors and in particular by drought. A major challenge for selection of grapevine cultivars

adapted to climate change and with high potential for winemaking is to dissect the complex plant

metabolic response involved in adaptation mechanisms.

A targeted metabolomics approach based on UPLC-QqQ-MS analysis in the MRM mode

(Lambert et al., 2015) has been developed for high throughput profiling of the phenolic

composition of grape skins. This method enables rapid, selective, and sensitive quantification of

96 phenolic compounds (anthocyanins, phenolic acids, stilbenoids, flavones, flavanones, flavan-3-

ol monomers and oligomers…), and of the constitutive units of proanthocyanidins (i.e. flavan-3-ol

oligomers and polymers, also called condensed tannin), giving access to detailed polyphenol

composition.

It has been applied on the skins of mature berries from a core-collection of 279 V. vinifera

cultivars grown with or without watering to assess the genetic variation for polyphenol

composition as a response to differential water availability, in the frame of the EU project

Innovine. Chemometrics analysis of the phenolic composition data has shed light on the genetic

diversity of vine metabolic response to drought.

Acknowledgments: The research leading to these results has received funding from the European

Community's Seventh Framework Programme (FP7/2007-2013) under the grant agreement n°

FP7-311775, Project Innovine.

Reference:

Lambert M, Meudec E, Verbaere A, Mazerolles G, Wirth J, Masson G, Cheynier V, Sommerer N,

2015. A high-throughput UHPLC-QqQ-MS method for polyphenol profiling in rosé wines,

Molecules, 7890-7914.



Effect of Abscisic Acid (ABA) on photosynthesis, carbon export from leaves

and sugar import in berries of Vitis vinifera L. cv. Carménère

C. Ribalta-Pizarro

1, L. Villalobos

1, C. Pastenes

1

1Departamento de Producción Agrícola, Facultad de Ciencias Agronómicas, Universidad de

Chile, Santiago, Chile

Abscisic acid (ABA) is a plant hormone known to play a key role in plant adaptation to drought,

increasing its concentration upon water stress conditions. This is of particular interest in the

context of climate change, where water supply is thought to decline worldwide (Chaves et al.,

2010). In leaves, ABA is considered a major signal for stomatal closure, declining photosynthesis

and potential yields. In grapevines, at the grape berry level, a shift in phloem unloading from

symplastic to the apoplastic pathway has been observed at veraison, preceded by an increase in

ABA concentration (Zhang et al., 2006). Still, the role of ABA in the modulation of the source to

sink ratio under stress conditions, remains unclear.

Two independent assays were established in a commercial vineyard, located in Maipo Valley,

Central Chile. Solutions with ABA were sprayed on clusters (A1): T0: 0 µL L-1 and T1: 85 µL L-

1, and leaves (A2): T0: 0 µL L-1 and T1: 170 µL L-1, in order to determine its effect on

photosynthesis, sugar content in berries and carbon stock in leaves of Vitis vinifera L. cv.

Carmenérè.

S-(cis)-ABA extraction and determination was perfomed by and indirect competitive ELISA

analysis. Stomatal conductance, carbon assimilation and transpiration rates were measured

simultaneously using a portable photosynthesis system CIRAS-2. Physical and chemical variables

in berries were assessed, such as weight (g), volume (mL), soluble solids (°Brix) total acidity (g

tartaric acid L-1) and pH. Carbon stock in leaves and sugar content in berries were determined

using HPLC. The potential rate of carbon export along the days was calculated, as described by

Pastenes et al. (2014).

When applied on clusters, ABA concentration was higher than control along the season. Also, a

transient hastening of the ripening process occurred, observed as a rise in sugar concentration,

lower acidity and higher pH in berries while, in leaves, an increase in carbon assimilation was

observed 1 day after veraison (DAV), in the west side of the canopy. ABA applied to leaves, on

the other hand, enhanced its concentration only at 9 to 11 DAV but its effects in leaves were

maintained along the whole season, decreasing stomatal conductance, transpiration and carbon

assimilation rates, in both sides of the canopy. Foliar concentration of soluble sugars and starch

was lower in applied leaves, transiently delaying sugar influx into berries. Nevertheless, despite

the evident decline in photosynthesis, berries were capable of reaching the same sugar

concentration at 19 DAV compared to control plants.

Acknowledgements: Fondecyt 110193 (Conicyt-Chile).

References:

Chaves et al. 2010. Grapevine under deficit irrigation: hints from physiological and molecular

data. Annals of botany, vol. 105, 5, 661-676.

Zhang et al. 2006. A shift of Phloem unloading from symplasmic to apoplasmic pathway is

involved in developmental onset of ripening in grape berry. Plant physiology, vol. 142, 1, 220-

232.

Pastenes et al. 2014. Carbon partitioning to berries in water stressed grapevines: The role of active

transport in leaves and fruits. Environmental and Experimental Botany, vol. 107, 154-166.



Genes involved in the short and long term responses to water deficit in

roots of different grapevine rootstocks

L. Rossdeutsch

1, A. Peccoux

1*, E. Marguerit

1, F. Barrieu

1, S. Delrot

1 and N. Ollat

1


*deceased

According to the simulations of climatologists (IPCC, 2013), precipitation regime should be

affected by climate change with more variations among seasons and regions. Drought severity

should increase especially in the Mediterranean zones. Considering that the scarcity of water will

increase in the future, irrigation cannot be considered as a sustainable way to adapt vineyards to

drought. Plant material, especially rootstocks, represents a major and low-cost option for

adaptation. Although grapevine is considered as a drought tolerant species, there is a large

variability among varieties and rootstocks. The physiological mechanisms underlying this

variability and their genetic architecture are not well identified. Improving our knowledge about

the short and long term responses to water deficit in roots of different rootstocks is a necessity to

develop new breeding procedures and select more adapted rootstocks. This work summarizes

several studies performed on commercial hybrids or interspecific progeny, all studied as

rootstocks, facing short or long term water deficit. They all aimed at identifying genes

differentially expressed in roots between genotypes. Their putative role in controlling genetic

variability will be discussed.

The transcript abundance of 20 candidate genes involved in ABA metabolism and signaling

pathways, or encoding PIP aquaporins was recorded in roots of seven commercial rootstocks

grafted with two V. vinifera varieties and facing a short term water deficit. In parallel, full root

transcriptome was analyzed after two weeks of water deficit for 110R and Riparia Gloire de

Montpellier grafted with Cabernet Sauvignon, Syrah or Grenache, using microarray technics. All

experiments were performed on potted vines under semi-controlled conditions. The output of

these differential gene expression studies was compared to the results obtained from QTL

mapping for transpiration responses to water deficit under the control of rootstocks (Marguerit et

al., 2012).

At short term, few genes involved in ABA metabolism and signaling or encoding aquaporins were

differentially expressed between rootstocks. Scion genotypes affected root responses. However at

more long term, full transcriptome analyses show that other pathways were more discriminant.

Genes involved in responses to oxidative stress, membrane metabolism and cell wall biosynthesis

were affected by the interaction between drought levels and rootstocks. At that stage, no scion

effect was recorded on root transcriptome. Location of these genes in the full genome of V.

vinifera was investigated and compared to the location of QTLs previously identified. Several of

them were indeed located in the confident interval of QTLs for transpiration and water use

efficiency. These results strengthen the role of these genes as key components of the genetic

determinism of drought responses in rootstocks. Further studies should be undertaken to fully

demonstrate their interest as molecular markers for drought tolerance.

Acknowledgments: Aquitaine region, CIVB and Metaprogramme INRA-ACCAF should be

acknowledged for their financial support to these studies.

References :

IPCC. 2013. Climate change 2013 - The physical Science Basis - Summary for Policymakers.

Marguerit E, Brendel O, Lebon E, Van Leeuwen C, Ollat N. 2012. Rootstock control of scion

transpiration and its acclimation to water deficit are controlled by different genes. New

Phytologist 194: 416-429.



Changing environmental conditions influence the wine grape metabolism

during postharvest withering

G.B. Tornielli

1, M. Fasoli

1, S. Dal Santo

1, E. Cavallini

1, S. Negri

1, F. Guzzo

1, M. Pezzotti

1,

S. Zenoni1

1Department of Biotechnology – University of Verona, Verona, Italy

Postharvest withering is used to modify certain grape berry quality traits that contribute to

peculiar characteristics of wines. This technique is economically important and extensively used

in some Italian viticultural areas to obtain high value and robust wines like Amarone and Recioto.

After harvesting, selected bunches are laid on trays in dedicated rooms under natural or partially

controlled environmental conditions for a period of 3-4 months. During this time berry sugar

concentration increases due to water loss, and metabolism is modified significantly as revealed by

a profound transcriptome rearrangement. In warm seasons, the anticipated grape harvesting

determines an early start of the postharvest withering. In these cases the high temperature

condition inside the withering rooms enhances the berry dehydration rate, and the entire process is

shortened.To investigate the effect of different dehydration rates on the grape berry metabolism

we compared the behavior of different grape varieties stored under contrasting environmental

conditions. Such conditions resulted in a traditional “slow” dehydration process and in another

“fast” dehydration process. Transcriptomic and metabolomic analyses revealed significant

differences among grapes dehydrated in different environmental conditions. The results evidenced

that only grapes dehydrated following the traditional slow process showed molecular and

metabolite changes associated to the typical quality traits of the wines produced from withered

grapes.

References

Zamboni A, Minoia L, Ferrarini A, Tornielli GB, Zago E, Delledonne M, Pezzotti M.,

2008.Analysis of post-harvest withering in grape by AFLP transcriptional profiling.J Exp

Bot.;59(15):4145-59.

Keywords : grape, postharvest withering, dehydration rate, transcriptomics, metabolomics



Regulation of Respiration, Tissue Oxygen Environment and Moisture

Content in Response to Seasonal Cues throughout Grape Bud Dormancy

Y. Velappan1, M.J. Considine

1,2, C.H. Foyer

1,2, J.A. Considine

1

1School of Plant Biology, The University of Western Australia, 35 Stirling Hwy,

Crawley, WA 6009, Australia 2Centre for Plant Sciences, The University of Leeds, Leeds, West Yorkshire LS2 9JT,

United Kingdom

Grapevine (Vitis vinifera) bud dormancy is a complex phenomenon, orchestrated by a plethora of

internal and external factors, all of which intervene concurrently to regulate dormancy onset,

maintenance and release. Respiration and reduction/oxidation (redox) metabolism along with

various other metabolic processes are known to be optimally regulated during dormancy in

relation to oxidative signalling. However, our current understanding of the crosstalk between

hypoxia, respiration and oxidative signalling within the grapevine bud meristem is very limited

and based on various gene expression studies that are less precise and hence cannot directly relate

to spatial organization, activity or function. Hence this research aims to elucidate the role and

regulation of these factors through dormancy onset, maintenance and release in grapevine buds in

response to seasonal cues in the Flame seedless variety.

Respiratory CO2 consumption and O2 production rates along with bud burst kinetics and moisture

content were measured for grape buds, collected from two different regions, Carnarvon (sub-

tropical) and Swan valley (mediterranean) in Western Australia with different climatic conditions,

from dormancy onset until release. The pO2 gradient of the buds from outer scales to inner

primary meristem complex was also recorded.

Dormancy onset for Carnarvon buds seems to occur prior to the end of January as opposed to

Swan valley’s in April. However both the regions show a uniformly low days to 50% budburst

(~50 days). An unusually low (~0.5) respiratory quotient was observed for the buds prior to

dormancy onset. Overall respiration begins to increase towards the end of endo-dormancy along

with the resumption of bud hydration. The internal meristematic tissues of the bud were

maintained in a hypoxic state (low pO2 value ~5kPa) until prior to bud burst, when overall

respiration began to increase along with the resumption bud hydration. Following this, the

hypoxic condition of the bud was relieved and the internal partial oxygen pressure of the bud was

normalized over the entire bud in relation to atmospheric partial oxygen pressure (21kPa) nearer

to bud burst.

The buds from Carnarvon and Swan valley exhibit a very shallow dormancy but there seems to be

a difference in the time of dormancy onset and release between the two grape growing regions,

probably owing to the climatic variation. There is tight regulation of moisture content, respiration

and internal tissue oxygen environment throughout dormancy onset, maintenance and release and

is speculated to influence metabolism and bud response to environmental cues.



Ensuring the sustainability of cool-climate Shiraz ‘peppery’ style in the

context of climate change

P. Zhang

1,†, S. Fuentes

1, S. Barlow

1 and K. Howell

2,‡

1Department of Agriculture & Food Systems, University of Melbourne, Parkville, Australia

2INRA, UMR1083 Sciences pour l’œnologie, Montpellier, France

† Presenting author: [email protected]

‡Corresponding author: [email protected]

Cool-climate Shiraz is gaining increasing popularity in the past decade for its stylistic savoury and

spicy aroma. Black peppery spiciness has been considered as the key identifier of high quality

cool climate Shiraz in many Australian cool-climate wine regions. Rotundone, an oxygenated

bicyclic sesquiterpene, was firstly identified by Australian researchers as the primary compound

responsible for this iconic characteristic. In the past four years, the University of Melbourne

partnered with Australian wine industry, and conducted frontier researches on this compound. We

investigated the influence of ‘terroir’ and grapevine physiological responses on the production of

rotundone in Shiraz grape and wine with a range of vineyard management factors which can be

manipulated to increase its occurrence. We have established models to link historical climate

factors with rotundone, and used this model to predict future production. The model allows real-

time estimation of rotundone production during growing season and in the final wine by

measuring grapevine phenological stages and cumulative heat during grape ripening. This enables

adoption of precision irrigation and canopy management strategies for achieving favourable or

mitigating adverse impacts of climatic change, with the aim of maximising the rotundone

concentration of grape berries. Furthermore, integrated with climate projection models, we are

able to predict the production of rotundone in wine in future vintages. This research allows iconic

cool climate Shiraz styles to be preserved, and allows modelling of new grape growing regions in

a changing climate. This report will introduce the latest progresses on the research of rotundone

and associated sesquiterpene compounds and give practical instructions on how to manipulate

vineyard rotundone production, which are especially important to maintain the sustainability of

cool climate Shiraz style.

Session 5, poster 43bis

Sustainable grape and wine production in the context of climate change, Bordeaux-France, April 10-13, 2016 Page 89bis

Canogrape: mitigating the effects of climate change on berry composition

by canopy management

E. Brouard

1, Z. Dai

1, S. Guillaumie

1, G. Hilbert

1, C. Thibon

2, C. Trossat-Magnin

1,

C. Renaud1, S. Delrot

1, P. Darriet

3, E. Gomès

1

1EGFV, Bordeaux Sciences Agro, INRA, University of Bordeaux, Villenave d'Ornon, France

2INRA, ISVV, University Bordeaux, EA 4577/USC 1366 Oenologie, Villenave d'Ornon,

France 3University Bordeaux, ISVV, INRA, EA 4577/USC 1366 Oenologie, Villenave d'Ornon,

France

Primary and secondary metabolites are major components of grape quality and their balances

define wine typicity. Global climate change is modifying vine physiology and especially the

biochemical composition of grape berries at harvest, by decoupling the phenolic and aromatic

maturity (defined by secondary metabolites) with technical maturity (defined by primary

metabolites) (Schultz 2000). These alterations will consequently challenge the sustainability of the

wine production. To face these challenges, more knowledge of the regulation mechanisms of

metabolite accumulation in grape is needed to promote innovated viticultural practices or new

cultivar selection (Keller 2010). One of the rapid and efficient ways to mitigate the climate change

effect is to modify vine canopy that modifies the relationship between source and sink (Bobeica et

al. 2015; Kliewer and Dokoozlian 2005).

The "Canogrape" project aimed to obtain a better understanding of the relationship between

primary metabolites as well as polyphenol and aromatic composition in response to canopy

manipulation, in order to find trade-off points for synchronizing phenolic and aromatic maturity

with technical maturity of grape. More precisely, we will use cv. Cabernet Sauvignon 1) to

analyze, in fine, the response of yield and biochemical composition in ripening berries, including

sugars, organic acids, amino acids, phenolic compounds (tannins, anthocyanins, flavonols,

stilbens) and aromatic compounds (including methoxypyrazines, thiols, and precursors of thiols),

with UPLC, GC-MS and LC-MS; 2) to link the modified berry composition with wine quality by

microvinifications; 3) define the relative sensitivities to canopy manipulation by using non-linear

regression methods; 4) to study the physiological mechanisms underlying the different

sensitivities of berry composition to canopy manipulation, by measuring the reprogramming of

central enzymes with a high-throughput enzymatic platform and qPCR or RNAseq techniques.

The preliminary results showed that different metabolites had distinct sensitivities to the

modulation of leaf-to-fruit ratios, attesting possibilities to reduce one specific metabolite while

maintain the other metabolites unaffected.

Acknowledgments: The work is supported by the Grant N°22000950 from CIVB. We thank for

the Experiment Unit of Chateau Couhins for access to the vineyard, Jean-Pierre Petit and Nicolas

Hocquard for taking care of greenhouse vines, and X. Poitou, L. Gouge, C. Gallardo, and R.

Viannais for helping in biochemical analysis.

References :

Bobeica N, Poni S, Hilbert G, Renaud C, Gomès E, Delrot S, Dai Z (2015) Differential responses

of sugar, organic acids and anthocyanins to source-sink modulation in Cabernet Sauvignon and

Sangiovese grapevines. Frontiers in Plant Science 6: 382

Keller M (2010) Managing grapevines to optimise fruit development in a challenging

environment: a climate change primer for viticulturists. Aust J Grape Wine Res 16: 56-69

Kliewer WM, Dokoozlian NK (2005) Leaf area/crop weight ratios of grapevines: influence on

fruit composition and wine quality. Am J Enol Vitic 56: 170-180

Schultz HR (2000) Climate change and viticulture: A European perspective on climatology,

carbon dioxide and UV-B effects. Aust J Grape Wine Res 6: 2-12


SESSION 3 : Adaptation to climate change

ORAL

Session 3, Keynote


Issues to be considered for strategic adaptation to climate evolution

H.R. Schultz

1

1Hochschule Geisenheim University, Geisenheim, Germany

The issue of climate change in the public is largely focused on rising air temperatures and changes

in precipitation patterns, yet the array of climatic regions used for grape production worldwide

will cause very different challenges depending on the area under consideration, the varieties under

cultivation and the type of production in mind (i.e. table grapes, sparkling wine, still wine a.o.).

Water and evapotranspiration: The effects of climate change on the terrestrial water cycle show

regional differentiated patterns. Temporal and spatial distribution can vastly differ between

regions and can show substantial variations (between and within years). Within the existing

production areas, water shortage is probably the most dominant environmental constraint, and

even in moderate temperate climates, grapevines often face some degree of drought stress during

the growing season. Yet too much moisture during some developmental phases such as maturity

may actually pose a greater risk in some areas. From rising temperatures it is mostly assumed that

water holding capacity of the atmosphere will increase in the future as a function of the Clausius-

Clapeyron law (Clapeyron, 1802) which predicts an increase in the saturation vapour pressure of

the atmosphere of 6-7% per degree Celsius warming. As a consequence, a simultaneous increase

in potential evapotranspiration (ETpot) is assumed which will alter soil and plant water relations.

Simultaneously, rising CO2-concentrations in the air will cause stomatal conductance to decrease,

which should reduce transpiration rates, thus may counteract the increase in evaporative demand

and improve water use efficiency. Models are needed which include the actions of environmental

parameters (including CO2) to predict changes in local water budgets in grape growing areas as a

basis for adaptive strategies (soil and canopy management, row direction, irrigation a.s.o.).

Soils and nutrient supply: Soil temperature has increased at least at a rate similar to air

temperature over the past more than 100 years (Böhme and Böttcher, 2011). A relatively unique

time series of soil temperatures down to 12m depth since 1889 reveals that soil temperatures in

the upper 1m profile have increased by about 2-3°C between April and August as compared to the

beginning of data collection. Higher temperature in combination with an increased propensity yet

variable spatial distribution of heavy rainfall events seems to have already increased the risk for

the development of rot (Botrytis cinerea) in some areas and will most likely continue to do so.

Additionally, increasing CO2-concentrations will increase plant growth, if water is available, and

thus increase the production of biomass which through more frequent hedging to keep the canopy

shape may further increase the release of nitrogen and may also cause a rise in greenhouse gas

emission rates, such as CO2 and nitrous oxide. Preventive actions to combat Botrytis need to be

devised on all organizational levels in vineyards, from plant protection, soil management to

canopy and bunch structure modifications.

Varieties: For a sustainable production, the ultimate adaptation would be the use of varieties

tolerant to the expected changes in climate and also tolerant/resistant to diseases currently existing

and/or appearing in the future. Selection of clonal variations within certain classical varieties may

contribute to a certain degree to achieve a small percentage of these goals, but will never be

capable of having sufficient disease tolerance. Will new genetic tools, such as cis-genetics or even

synthetic biology, change this in the future despite current public resistance against “genetic

modified organisms”?

References :

Böhme, M., Böttcher, F., 2011. Bodentemperaturen im Klimawandel: Auswertungen der

Messreihe der Säkularstation Potsdam. Klimastatusbericht des Deutschen Wetterdienstes, 85-90.

Clapeyron, E., 1802. Puissance motrice de la chaleur. Journal de l’Ecole Royale Polytechnique,

23ème cahier, tome XIV, 153-190.

Session 3, oral 28


Modified grape composition under Climate Change conditions requires

adaptations in the vineyard

C. van Leeuwen

1, P. Darriet

2, J.M. Sablayrolles

3


2UR Œnologie, USC 1366, Villenave d’Ornon, France

3UMR Sciences pour l' Œnologie, Montpellier, France

Major effects of Climate Change are an increase in temperatures, a modification in rainfall

patterns and an increase in incoming radiation, in particular UV-Bs. Vines are highly sensitive to

climatic conditions. Hence, vine development, grape ripening and grape composition at ripeness

are modified by Climate Change. Some of these changes are already visible and will be amplified

over the coming decades; other effects, although not yet measurable, can be predicted by

modeling. This will induce major modifications in wine quality and typicity worldwide.

Vine phenology is driven by temperatures. A significant advance in phenology (i.e. budburst,

flowering and veraison dates) is observed since the early 1980’s in most winegrowing regions.

The combined effect of advanced phenology and increased temperatures results in warmer

conditions during grape ripening. In these conditions, grapes contain more sugar and less organic

acids. Composition in secondary metabolites, and in particular aromas and aroma precursors is

dramatically changed. Increased drought, because of lower summer rain and/or because of higher

reference evapotranspiration (ET0), induces earlier shoot growth cessation, reduced berry size,

increased content in skim phenolic compounds, lower malic acid concentrations and modified

aroma and aroma precursor profiles. Increased UV-B radiation enhances the accumulation of skin

phenolics and modifies aroma and aroma precursor profiles.

Changes in grape composition modify wine quality and typicity. However, these modifications

can be limited through adaptations in the vineyard. Major adaptations can be reached though

modifications in plant material (grapevine varieties, clones and root-stocks), vineyard

management techniques (vine architecture, canopy management, harvest dates, vineyard floor

management, timing of harvest, irrigation) or site selection (altitude, aspect, soil water holding

capacity).

Session 3, oral 29


Projections of suitable wine growing regions and varieties:

adaptation in space or place?

E.J. Forrestel

1, B.I. Cook

2, I. Garcia de Cortazar-Atauri

3, T. Lacombe

4, K.A. Nicholas

5,

A.K. Parker6, C. van Leeuwen

7, E.M. Wolkovich

1

1Harvard University, Boston, United States

2NASA Goddard Institute for Space Studies, New York, United States

3INRA Provence-Alpes Côtes d'Azur, Avignon, France

4Lund University, Lund, Sweden

5INRA Montpellier, France

6Lincoln University, Canterbury, New Zealand


Winegrapes (Vitis vinifera L) are the most valuable horticultural crop in the world with nearly

eight million hectares of vineyards in cultivation. Different varieties of winegrapes (e.g., Pinot

Noir or Grenache) exhibit an unprecedented amount of phenological and genetic diversity for a

cultivated species, which is an important resource to buffer against climate change. Matching

phenological strategies of the different winegrape varieties to a particular climate is a fundamental

aim for every vineyard manager, especially in the face of significant climatic shifts in many

winegrape growing regions. Yet current projections of suitable winegrape growing regions based

on future climate scenarios are limited in their utility, as they do not consider the possibility that

other varieties better suited to a future climate could be planted within an existing region. For our

projections, we built phenological models for the nine most-planted winegrapes globally, which

constitutes over 40% of all planted hectares, using a global dataset of budburst, flowering and

veraison. These models were then used to characterize the growing range of 1300 globally planted

winegrape varieties. Combing these models with climate projection models under RCP 4.5 and

8.5 emission scenarios we examined future distributions of suitable wine growing regions, as well

as the turnover of suitable varieties within existing regions. In some regions of the world,

predicted climate change will not significantly alter the varieties that are able to grow, while in

others there will need to be shifts in the region itself or in the varieties that are currently planted.

Some regions will also see a significant increase in the number and diversity of varieties that can

be grown. Our results suggest the need to utilize the full range of winegrape diversity available

when considering adaptive strategies in response to changing climates.

Session 3, oral 30


How to translate narrative scenarios in landscape dynamics:

Application to the introduction of irrigation in vineyards

F. Vinatier

1, R. Gaudin

2, C. Gary

2, P. Lagacherie

1

1UMR LISAH, Montpellier, France

2UMR SYSTEM, Montpellier, France

In order to secure long-term investment in terroir, to ensure stable and steady vintage quality and

to mitigate climate change impacts, more and more vinegrowers consider irrigation as a possible

solution. However, the introduction of irrigation in a vineyard area is often hampered by

limitations in water resources and competing uses. The impact of introducing vineyard irrigation

in a landscape can be minimized by a purposive (and collective) strategy of selection of the

parcels to be irrigated. Ex-ante studies of such strategies, require spatially explicit scenario of

progression of irrigation in a vineyard following possible alternate strategies while accounting for

the driving forces affecting land use, such as socio-economic crises or climate change. Although

narrative scenario are largely used in the scientific community working on prospective, their

spatialization at fine scale for accounting for future local decisions is still difficult. Two main

reasons explain this phenomenon: diachronic dataset at fine spatial and temporal scales are

difficult to obtain and there is a lack of innovative frameworks to translate storyboards in fine-

resolution landscape models.

We aim at describing a probabilistic model adapted to a polygonal landscape (vectormode) to

simulate changes in land cover at fine resolution scale. The model is based on transition matrices

between land uses, applied on constrained maps that reflect the spatial heterogeneity of a given

trend. The landscape evolution is forced by non-spatial drifts such as climate change or political

decisions.

Here, we explore the capacities of the model to simulate plausible scenarios of land use change

when irrigation is introduced in a vineyard subjected to climate change. Land uses are categorized

in three levels according to the Corine Land Cover nomenclature: artificial surfaces, agricultural

areas, forests and semi-natural areas. Sublevels are especially defined for the purpose of the study,

as irrigated and non irrigated vineyards. Climate change is defined by an hypothetical increase in

number of consecutive years of drought in the area. The model is based on a diachronic dataset

covering the period 1960-2014 in a large watershed of about 200 km2. We postulate that

introduction of irrigation in this area is mainly driven by two constrained maps: sensitivity of

vineyards to drought and cost access to irrigation for each plot. We considered also that vineyards

could be abandoned after being exposed to several years of drought. The abandonment of

vineyards is spatially driven by a constrained map of vineyards potentials. Finally, the urban

expansion on the zone is defined by a constrained map issued from distances to the town centers.

We tested three narrative scenarios: the first one represents the “business as usual”, simply

extrapolating the global trends issued from the diachronic dataset, and the last scenarios relate the

introduction of irrigation in the area with two different strategies of farmers to maintain their

vineyards. For the first strategy, all vineyards are maintained, enclosing the ones subjected to

stress. For the second strategy, farmers preserve only the vineyards with the best potentials.

The variation of the water volume of the dam located upstream and the overall potential of the

vineyards is analyzed against time for comparison between scenarios. The potential of the model

to simulate complex landscape evolutions is discussed.

Session 3, oral 31


Vineyard drought adaptation in the Douro demarcated region

F. Alves

1*, F. Rogerson

1, S. Joao

2, R. Veiga

2, I. Oliveira

3, H. Ferreira

3, B. Gonçalves

3

1Symington Familily Estates, Quinta do Bomfim, Pinhão, Portugal 2University of Trás-os-Montes e Alto Douro, Vila Real, Portugal

3Centre for the Research and Technology of Agro-Environmental and Biological Sciences,

Vila Real, Portugal


The climate change scenarios point out to significant variation in the Mediterranean temperature

and rain patterns, circumstances of great importance in the vineyards of the Douro Region,

northern Portugal, which are already exposed to harsh summer (hot and dry) climate conditions.

Those expected variations are likely to cause a decrease on the production and quality of wine.

Although some studies are available, regarding the most adapted cultivars of grapevines to

adverse conditions, few of them are performed to understand the actual mechanism of adaptation

behind the tolerance to drought. Hence, this preliminary study intends to elucidate some of the

basic mechanisms of adaptation of different cultivars, grafted onto several rootstocks, to withstand

drought. Two different grapevine cultivars traditionally sensitive to heat and water stress in Douro

Region, Tinta Barroca and Tinta Roriz (Syn. Tempranillo), grafted onto four rootstocks, Rupestris

du Lot, 1103 Paulsen, 110 Richter and 196-17 Castel, grown in the Cavadinha vineyard

(Symington Family Estates) in the Douro Demarcated Region, where analysed in several leaf

anatomical (xylem vessels and tissue measurements) and biochemical (waxes, photosynthetic

pigments, soluble sugars, starch and non-structural carbohydrates content, total phenolics, proteins

and Thiobarbituric Acid Reactive Substances –TBARS, as an indicator of lipid peroxidation)

parameters. Furthermore, anatomical and biochemical analyzes of grape berries were also

performed. Overall result, although preliminary appear to show different mechanisms of

adaptation to drought, when comparing cultivars. Regarding Tinta Barroca cultivar, the adaptation

to drought appears to occur by leaf morpho-anatomical modifications (higher lamina, upper and

lower epidermis and cuticle thickness, as well higher waxes content), as well as by osmotic

regulation (higher content of non-structural carbohydrates) while, for Tinta Roriz cultivar,

biochemical changes (higher content of photosynthetic pigments and lower TBARS, as well lower

content of non-structural carbohydrates) suggest a biochemical adaptation. Furthermore, the grape

berries maintained the characteristics associated to each cultivar.


Session 3, oral 32


Cooperative winery can be a major actor for adapt viticulture locally?

E. Delay

1, C. Piou

2, H. Quenol

3

1Laboratoire GEOLAB, UMR 6042, Limoges, France

2CIRAD, UMR CBGP, Montpellier, France

3LETG-Rennes-COSTEL, UMR 6554, Rennes, France

Wine-growing areas are agro-systems examples where the production is highly dependent on

environmental constraints. Climate change is a major stress added to those that already weigh on

viticulture (White et al. 2006).

If climate change is not disputed, it is the vine-grower capacity to take advantage of their

environment and agricultural practices that now need to be explored. A corpus of scientific studies

emerged in the literature to tackle these issues with divers methodologies (Duchêne et al., 2012;

Viguié et al., 2014; Quénol et al., 2014).

The Banyuls-Collioure AOC (controlled designation of origin) in the Pyrénées-Orientales area of

France is representative of the southern part of France where most of the wine production is made

by small-scale vine-growers who are mainly organized in cooperatives. Meanwhile, questions of

adaptation to climate change are becoming increasingly pressing (Van Leeuwen et al., 2013),

particularly in the south of France and Mediterranean Basin. What would be the future of these

areas if tomorrow the mountain environment was no longer perceived as a constraint, but

rather as a land of refuge to face climate change?

We will explore this question via a spatially-explicit agent-based model, by focusing on the self-

organization strategies implemented by agents to meet the cooperative’s quality requirements. We

have created a simulation environment, built from geographic information system data, field

surveys and economic values related to the Banyuls-Collioure AOC area. This work has two aims

considering climate change: 1) to attempt to provide global insight into how a mountainous vine-

growing area can react and adapt to new challenges, and 2) to investigate cooperative policies and

their implication on the vineyard landscape stability that can be a source of local development.

References :

Duchêne, E., Butterlin, G., Dumas, V., Merdinoglu, D., 2012. Towards the adaptation of

grapevine varieties to climate change: QTLs and candidate genes for developmental Stages.

Theoretical and Applied Genetics 124:4, 623-635.

Quénol, H., Grosset, M., Barbeau, G., van Leeuwen, C., Hofmann, M., Foss, C., Irimia L., 2014.

Adaptation of viticulture to climate change: high resolution observations of adaptation scenarii for

viticulture: The ADVICLIM European Project. Bulletin de l’OIV 87:1001-1002-1003: 395-406.

van Leeuwen, C., Schultz H.R., Garcia de Cortazar-Atauri, I., Duchêne, E., Ollat, N., Pieri, P.,

Bois, B., 2013. Why climate change will not dramatically decrease viticultural suitability in main

wine-producing areas by 2050. Proceedings of the National Academy of Sciences 110:33,

3051-3052.

Viguié, V., Lecocq, F., Touzard, J.M., 2014. Viticulture and adaptation to climate change. Journal

International des Sciences de la Vigne et du Vin, sp: 55-60.

White, M.A., Diffenbaugh, N.S., Jones G.V., Pal J.S., Giorgi, F., 2006. Extreme heat reduces and

shifts United States premium wine production in the 21st century. Proceedings of the National

Academy of Sciences 103:30, 11217-11222.

Session 3, oral 33


Climate change and adaptation:

Alsace and Loire Valley vintners’ challenging point of view

G. Teil

1

1INRA SAD APT, Paris, France

Climate and biology research infer changes in the vine culture and wine characteristics from some

climate variables, which they are reasonably sure will evolve. Social sciences are then asked to

watch whether the vintners and wine makers are ready to adapt to these changes and how they

will or have readily started to proceed. The second question asked to the social sciences regards

the mitigation or adaptation situation of the vintners. Adaptation is often considered as a last

resort, when the climate change is too strong, can no more be compensated and threatens the

stability of the world and its activities. In this case, the pressure on the inhabitants of the planet

should be enforced so as to make them change their ways of life, activities and general practices

so as to lower their effect on climate change.

The interviews with the French vintners and winemakers of our field study in Alsace and Loire

Valley show quite a different image and structure of concerns. Actors notice many changes in

their vines and wines, but climate is not the only one change occurring in the world: markets,

customers, tastes, techniques change constantly. The question is therefore, which of these multiple

changes can reasonably be attributed to climate change? This question is made even more

complicated because most of the expected climate change effects converge with recent technical

changes, which have been fostered by the vintners themselves and part of the wine and PDO

administration.

For vintners, the expected effects of climate change are therefore often most welcome although as

the expected result of technical change some of them, like the increase of sugar un the most, seem

to have met their target and would need to be controlled and stopped. Yet, the question of the

attribution of the effects to one change or another is not as important as the management of the

diversity of the wines, which they all foster. This question is even more acute in the

Denominations of Origin because of their framing of the quality and its diversity. So if climate

change is not such a worry for the vine growers, the diversification of the wines qualities it seems

to contribute to has become a major issue.

Vintners do not raise major problems regarding the adaptation to climate change, which is for

them a minor change compared with all the changes they are used to face every new year. They

experiment new techniques, new wine qualities… sometimes they ask the researchers to provide

them with specific vine varieties or vine growing more efficient practices. But, most of all in the

PDO, these demands always face the difficulty of fitting with other requirements regarding

market, consumer ethics, specific wine aesthetics, environmental issues among others.

Finally, from the actors’ point of view, the problematic regarding mitigation or adaptation is

somehow senseless, because the world is not and has never been stable. It is on the contrary

facing constant changes. So it is absolutely impossible to differentiate between mitigation and

adaptation, just as it is impossible or very difficult to differentiate adaptation to climate change

and other types of changes.

Session 3, oral 34


Process-based models for analysing grapevine genotype adaptation to

climate change: issues and challenges

P. Vivin1, E. Lebon

2, Z. Dai1, E. Duchêne

3, I. Garcia Cortazar-Autauri

4, E. Marguerit

1,

A. Coupel-Ledru2, A. Parker

5, A. Peccoux

1, J. Zhu1, P. Pieri

1, T. Simonneau

2,

C. van Leeuwen1, S. Delrot

1, N. Ollat

1


2UMR LEPSE, Montpellier, France

3UMR SVQV, Colmar, France

4US Agroclim, Avignon, France

5The New Zealand Institute for Plant&Food Ltd., Marlborough, New Zealand Correspondance: [email protected] and [email protected]

Process-based plant models are increasingly used in agricultural research over the last decades,

and are undoubtedly interesting tools which allows quantifying plant responses to environmental

factors within a mathematical framework. The purpose of theses approaches is to improve (i)

understanding of key physiological processes that determine whole-plant behavior and fruit

quality, and (ii) characterization of phenotypes plasticity. Environmental factors are often

considered as model-driving variables, and plant- or genotype-specific coefficients are used to

represent physiological characteristics. As a result, these models can offer significant advantages

in assessing and predicting the effects of climate change as compared to purely statistical or rule-

based ones based on previously collected data. More recently, process-based models combined to

genetic approaches have also been shown to provide a relevant framework for analysing genetic

diversity of complex traits and enhancing progress in plant breeding for various environments.

Indeed if the models adequately describe the effects of the genetic variability in a few climatic

scenarios, they can be extended to a much larger number of scenarios in order to evaluate the

comparative advantage of a given allele in different hypothetical environments associated with

climate change. Such an approach provides a way of overcoming the uncertainties associated with

gene and environment context dependencies that currently impeded the progress of molecular

breeding. Models integrating physiological processes and their genetic control will form the first

step to design and test in silico plants for future environments.

In grapes, modeling plant abiotic stress tolerance and fruit quality is still a challenging issue. An

overview of the present knowledge and main process-based models in literature dealing with this

topic will be presented. Models developed for phenology, plant drought response and berry sugar

accumulation will be outlined. These models consist of simple responses curves for one trait or

are able to simulate more complex physiological processes. Genetic parameters were defined and

their variations among genotypes or segregating populations analysed. The potential use of such

models to simulate ideotype behavior under future climatic conditions will also be discussed.



Session 3, oral 35


How can grapevine genetics contribute to the adaptation to climate change?

E. Duchêne

1

1UMR SVQV, Colmar, France

Corresponding author: [email protected]

Climate change is modifying the environmental conditions in all the vineyards across the world.

The expected effects on grape and wine production can be positive in some grape growing regions

but under warmer or dryer conditions the volume and quality of the wines produced can be

impaired. Adaptation to new climatic conditions include changes in the cultivation areas, changes

in the vineyard or cellar practices, or use of new rootstock x scion combinations. In this review,

we will provide a quick overview of the possible effects of climate change on grapevine

physiology and berry quality and we will describe the more important traits and the genetic

variability that can be used in the adaptation process. We will also present the modern techniques

that can be used by researchers to identify the links between genomic information and behaviors

in the field. Finally, we will discuss on the existing opportunities in the present grapevine

collections and on the strategies that can be used by breeders to create new varieties.


Session 3, oral 36


New plant phenotyping technologies in a changing climate

J. Tardaguila

1*, M.P. Diago

1

1Instituto de Ciencias de la Vid y del Vino, University of La Rioja, Logroño, Spain


Climate change is altering the environments in which grapevine develops. Determining responses

to environmental changes will require an understanding of the environmentally induced variation

in the phenotype of individual vines. This issue is even more crucial in scenarios of high

environment variability occurring under climate change. In this work, new plant phenotyping

technologies and tools are presented to address several key grapevine traits. Hence, new, non-

invasive sensing technologies, including computer vision, thermography, spectroscopy,

chlorophyll fluorescence and hyperspectral imaging were compared with traditional methods and

tools used in viticulture. Computer vision systems were powerful tools to assess the grapevine

yield components. Hence, the number of flowers per inflorescence could be estimated using a

smartphone app based on computer vision technologies. Plant water status can be assessed using

thermal imaging or NIR spectroscopy as non-destructive technologies. Variety discrimination can

be performed using hiperespectral imaging under lab conditions and by NIR spectroscopy under

field conditions. Grape colour can be appraised in the field using optical and portable chlorophyll

fluorescence based sensors. Moreover, several non-invasive sensors can be embedded and

mounted on a vehicle or in a robot for field high-throughput plant phenotyping, enabling the

assessment of multiple viticultural features simultaneously. New multi-sensor plant phenotyping

mobile platforms are proposed for vineyard monitoring for the wine industry.


Session 3, oral 37


How to adapt winemaking practices to modified grape composition under

climate change conditions?

S. Dequin

1, J.M. Sablayrolles

1, J.L. Escudier

2, J. Noble

3, J.M. Salmon

2, W. Albertin

4,

I. Masneuf-Pomarède4, P. Marullo

4,5

1UMR Sciences pour l’Œnologie, Montpellier, France

2UE Pech Rouge, Gruissan, France

3 Lallemand SAS, Blagnac, France

4UR Œnologie EA 4577, USC 1366, Villenave d’Ornon, France

5 Biolaffort, Bordeaux, France

Major expected effects of climate change are an increase in temperature and changes in rainfall

patterns and incoming radiation. As a consequence, vine phenology and grape composition at

harvest should be dramatically modified. The main consequences on grapes are more sugar and

less organic acids but composition in aroma and phenolic composition of wines is also affected.

Winemaking practices have therefore to be adapted and the interest of new approaches has to be

evaluated.

Reducing ethanol concentration in wines poses a number of technical and scientific challenges.

Several technologies have been developed and some of them are already available for

winemakers. Their effectiveness as well as their consequences on wine quality are discussed.

Looking for specific yeast strains with lower alcohol yield is also of great interest. Several non

GMO strains – S. cerevisiae or interspecific hybrids of the Saccharomyces genus - have yet been

developed, using different strategies, and some of them permit to decrease the final ethanol

concentration by up to 1%. Yeast protectors could be also added during yeast rehydration, in order

to increase resistance to alcohol and the viability of cells at the end of fermentation. The control of

wine acidity is also a main objective as high pH is detrimental both from an organoleptic and a

technological aspect. Several membranes –based processes now permit to correct wine acidity

with a moderate impact on wine quality. A yeast strain combining acidifying capabilities and low

ethanol yield has also been developed.

In the context of climate change, adaptation of winemaking practices and implementation of novel

techniques are major challenges for winemakers.

Session 3, oral 38


Severe trimming and enhanced competition of laterals as a tool to delay

ripening in Tempranillo vineyards under semiarid conditions

L.G. Santesteban

1, C. Miranda

1, M. Loidi

1, I. Sagarna

1, J.B. Royo

1

1Dpt. Prod. Agraria, Univ. P. Navarra, Pamplona, Spain

An advancement in grapevine phenological stages, including ripening, is occurring worldwide due

to global warming and, in the hottest seasons, already results in a lack of synchrony between sugar

and phenolic ripeness and leads to unbalanced wines. In order to cope with this fact, a general

effort is being made by researchers and growers aiming at delaying ripening through cultural

practices, particularly under warm growing conditions, where these effects are more deleterious.

The aim of this work is to evaluate to which extent severe trimming and enhanced competition of

laterals can delay ripening in Tempranillo vineyards under semiarid conditions.

The experiment took place during two consecutive seasons in Traibuenas (Navarra, Spain) in a cv.

‘Tempranillo’ vineyard. Vines are trained to a VSP spur-pruned bilateral cordon. A severe

mechanical pruning was performed ca. 3 weeks after fruit-set, in order to reduce leaf-to-fruit ratio,

and, in the trimmed plants, three irrigation doses applied until harvest aiming at enhancing lateral

growth, hypothesized to compete with ripening. All measurements were performed in six 10-vine

replicates per treatment.

Trimming reduced leaf area and yield significantly and, probably due to it, resulted in higher

water availability in trimmed plants. All the ripening process was delayed by trimming: mid-

veraison was delayed about 5 days, and the delay of sugar accumulation and acids degradation

was longer, differences being clearer in malic than in tartaric acid concentration, which proves the

potential interest of trimming by itself. The use of increased doses of irrigation compensated the

losses in yield caused by trimming. As expected, the highest irrigation doses increased laterals’

growth, and implied an additional delay of ripening, indicating the additive effect trimming and

increased irrigation. Nevertheless, it is necessary to further analyze the implications the obtained

delay has on other aspects of quality, since, in general terms, anthocyanins and phenolics values

were lower in trimmed vines but it was not solely due to delayed ripening, as lower values were

observed even when data were compared for a given total soluble solids content.

Acknowledgments: This work has been performed as part of VINACID Research Project, Funded

by Bodegas Ochoa, CDTI and the Government of Navarra.

Session 3, oral 39


Should water supply by irrigation be soon a technique to manage aromatic

potential of Colombard in South-Western France Gascony vineyard?

T. Dufourcq

1, F. Lopez

1, B. Mille

2, R. Schneider

3, X. Delpuech

4

1Institut Français de la Vigne et du vin pôle Sud-ouest, Caussens, France

2 Institut Français de la Vigne et du vin pôle Sud-ouest, Lisle/Tarn, France

3 Institut Français de la Vigne et du vin pôle Rhone-Méditerranée, UMT Qualinnov,

Gruissan, France 4 Institut Français de la Vigne et du vin pôle Rhone-Méditerranée, Nîmes, France

The aim of this work is to sustain the aromatic typicality of Vitis vinifera Colombard cv., taking

into account that the aroma expression of this white Gascony wine is its main issue to market

access. The Gascony vineyard in the South-western France, undergoes a temperate oceanic

climate with regular but heterogeneous rainfalls in summer. It may in the future face hotter

temperatures, increase of evapotranspiration and less rainfalls. This experiment used irrigation as

a tool to manage the vine water status and finally influence the content of varietal thiols in

Colombard wines. The study took place from 2010 to 2014 on an experimental plot of 300

grapevines where irrigation was led by drip system. Two different strategies of deficit irrigation

were tested each year during pre and post veraison periods in comparison with a rainfed control.

Vine water status was rated by the measure of stem water potential on grapevines during season,

by the estimation of soil water content with WaLIS soil water balance model, and by the analysis

of δ13C in sugar at harvest. The grapes were vinificated at pilot scale under reductive standardized

conditions to maximize their varietal thiols expression. As results, we observed a strong

variability in the summer rainfalls during the studied vintages and it was not possible to compare

directly the rainfed and drip irrigation grapevines production. Soil water availability simulated

with WaLIS model showed significant correlation with stem water potential measurements on the

experimental field. Depending on the rainfalls variability, the irrigation water supply and the

grape maturity process, we generated different classes of quality: early or late harvest date

associated with modelled soil water status during veraison to harvest period. We showed that, to

significantly produce more varietal thiols in Colombard wines, late harvest date combined with a

comfortable water availability during veraison to harvest was the best vineyard management

choice. These results gave some references in order to conduct a vineyard for white aromatic

wines production. The knowledge of soil water availability in viticulture is one the main variable

to deal with. It may be easily reachable with modelling tool. Local wine sector should master this

fitting device in climate changing context.

Session 3, oral 40


Canopy manipulations to delay ripening: A case study for Pinot noir and

Sauvignon blanc

A.K. Parker

1, R.W. Hofmann

1, C. van Leeuwen

2, A.R.G. McLachlan

3, M.C.T. Trought

1,4

1Lincoln University, Christchurch, New Zealand


3The New Zealand Institute for Plant & Food Research Limited, Palmerston North,

New Zealand 4The New Zealand Institute for Plant & Food Research Limited, Marlborough, New Zealand

Grapevine phenology is predicted to advance in response to increasing temperatures due to

climate change. As a result we can expect earlier and compressed harvests, and/or increased sugar

concentration in the fruit at harvest time. Solutions to mitigate earlier phenology include changing

varieties or areas in which grapevines are planted, or using management techniques to delay

ripening on existing vineyards (e.g. late pruning, canopy trimming and/or application of plant

growth regulators).

The aim of this study was to investigate the effects canopy trimming to alter the source-sink ratio

of the grapevine and to determine the effect this has on the timing of veraison and on berry

composition. Four cane pruned Sauvignon blanc and Pinot noir vines were trimmed to retain

between three and 18 leaves per shoot shortly after fruit set. Veraison was assessed by monitoring

the day of the year at which 8° Brix was achieved. Fruit composition soluble solids, titratable

acidity and pH and berry weight were measured regularly from veraison to harvest. Leaf area and

yield were quantified at harvest.

Trimming shortly after fruit set delayed the date of veraison for both varieties by up to a week.

Lower rates of soluble solids accumulation reflected reduced leaf number. The rate of

accumulation at any leaf area: fruit weight ratio was similar for both varieties. As a consequence

the date at which a target soluble solids was achieved was later at lower trim heights and in

extreme treatments the soluble solids did not obtain a commercial concentration by the end of the

season.

Manipulating the source-sink ratio of grapevines by trimming, to reduce photosynthetic source for

the vine may be used to delay the onset of, and slow the rate of soluble solids accumulation. This

technique to slow the ripening phase may counter some of the advances in fruit development seen

as a result of climate change. The results also suggest that leaf area: fruit weight ratio affects the

date of veraison and rate of soluble solids accumulation in a similar way for different grapevine

varieties.

Acknowledgments: New Zealand Grape and Wine Research programme, a joint investment by

Plant and Food Research and NZ Winegrowers, We appreciate the Agricultural and Marketing

Research and Development Trust, New Zealand, for the scholarship to A.K.Parker and funding

from The NZ Foundation for Research Science and Technology (Designer Grapevines -

CO6X0707).


SESSION 3 : Adaptation to climate change

POSTER



A probabilistic model for sustainable wine growing

P. Abbal

1*, G. Cargnello

2, A. Carbonneau

3

1INRA, UMR 1083 Science for Enology, Montpellier, France

2Centro di Ricerca per la Viticoltura, Conegliano, Italy

3SupAgro, Montpellier, France


Objectively evaluating the quality of a vineyard in the context of climate change is not always

simple. Bayesian networks are widely used for knowledge representation and reasoning under

uncertainty in natural resource management. There is a rising interest for this methodology as

tools for ecological and agronomic modelling. We designed a probabilistic model that takes into

account the parameters defining the status of a vineyard with their associated interactions. No

such model has been developed before. It includes an inference engine and software. Data were

collected from vine-growing experts. The model includes a database with more than 660 grape

varieties. For climate, our model uses a classification method (Tonietto and Carbonneau, 2004)

involving multivariate measurements of climate on the basis of three indices: heliothermal index

(HI), cool night index (CI), and dryness index (DI). Our model should ease assessments of the

likely impact of the choices and decisions of vine growers on the quality of new vineyards to be

planted. Thanks to this mathematical model, any kind of simulation of climate change based on

the international indexes can be performed. Some examples will be presented. Same thing

concerns a primary evaluation of models of sustainable Viticulture. The general frame of the

GiESCO charter of sustainable Vitiviniculture is reminded on that occasion.

References :

Tonietto, J., Carbonneau, A., 2004. A multicriteria climatic classification system for grape-

growing regions worldwide. Agricultural and Forest Meteorology 124:1-2, 81-97.




Development of a model of flooding response in grapevine – Preliminary

results

S. Trevisan

1, F. Girardi

1, L. Ravazzolo

1, S. Quaggiotti

1, C. Bonghi

1,2, A. Pitacco

1,2,

A. Botton1, B. Ruperti

1,2, F. Meggio

1,2

1Department of Agronomy Food Natural resources Animals and Environment – Università di

Padova, Legnaro (PD) Italy 2Centro Interdipartimentale per la Ricerca in Viticoltura ed Enologia - Università di Padova,

Conegliano (TV), Italy

According to WMO, the world experienced unprecedented high-impact climate extremes during

the 2001-2010 decade. Furthermore, in 2013 IPCC reported that nearly 94% of countries had their

warmest decade in 2001-2010, with droughts occurring in all parts of the world and floods being

the most frequent extreme event over the course of the decade. Under this climate change

scenario, traditional wine-growing regions, where terroir expression has been optimized through

millenary experience, will likely face more frequent and intense extreme weather events.

In particular, root exposure to prolonged hypoxic conditions produced by temporary flooding of

the soil, caused by high rainfall, faulty irrigation, unleveled land, poor drainage or heavy soil

texture, induces multiple plant physiological dysfunctions leading to a decline in vine growth,

yield and enological results from the qualitative point of view. Studies carried out on model

species revealed that oxygen deficiency in the soil (hypoxia or anoxia) due to waterlogging

conditions leads to anaerobic processes in the rhizosphere (i.e. microbial respiration), a drop of

citoplasmatic pH, the accumulation of toxic metabolites in both the root and the rhizosphere, the

synthesis of stress hormones (i.e. abscisic acid and ethylene) and the production of reactive

oxygen species (ROS). To date information available on the physiological responses to flooding

in grapevine is still lacking due the relative low frequency of flooding events occurrence until

recent decades.

With the aim of characterizing the effects of single stresses (flooding, drought and heat waves)

and of their combinations on grape physiology, the present work has focused on drawing a first

physiological model of grapevine responses to flooding conditions during the dormancy period, as

the most susceptible one to high frequency precipitations events.

Vines of Vitis vinifera cv. Sauvignon blanc grafted on K5BB rootstock were grown in 5L pots

under hydroponic conditions (modified Hoagland) and arranged in two experimental conditions:

control (plants maintained in a constantly oxygenated solution) and hypoxia (plants maintained in

a solution without oxygenation and isolated from air). During an experimental period of 8 days,

measurements of dissolved O2 concentration (mg/L) and pH were conducted and apical roots

were sampled every two days after stress imposition. On the sampled material, molecular markers

generally involved in response to hypoxic conditions were analyzed by Real-time RT-qPCR,

including i.e. alcohol dehydrogenase (ADH), pyruvate dehydrogenase complex (PDC), ACC

synthase (ACS), ACC oxidase (ACO), Sucrose synthase (SuSy). The dataset obtained has been

utilized for the development of a preliminary model of the responses dynamics in grapevine roots

(K5BB) to hypoxia.

Acknowledgments: this work was funded by the project “GrapeXtreme - Effects of extreme

weather events on grapevine: a physiological, metabolic and molecular perspective” funded by the

Italian Ministry of University and Research under the program SIR 2014.



VitAdapt: an experimental program to study the adaptation of a large

range of Vitis vinifera varieties for Bordeaux vineyards

A. Destrac-Irvine

1, D. Texier

2, C. Castany

1, D. Vergara

1, M.-A. Fougere

1,

N. Zirari1, S. Delrot

1 and C. van Leeuwen

1


2INRA Bordeaux, Wine experimental unit, Bordeaux, France

Introduction – In order to address global warming and its consequences, it seems essential to

adapt viticultural practices in vineyards. Given this context, we develop part of our research on

the aspect of plant material. For this, we have chosen to study the long term behaviour and

adaptation to climate of a wide range of grape varieties. The VitAdapt project was initiated in

2009 to study the response of 52 varieties to climate changes in Bordeaux. The objectives are

multiple: to study the behaviour of Bordeaux varieties in a changing climate, to explore the

quality and adaptation potential to warmer conditions of potential candidates for introduction in

Bordeaux, to develop a large database of phenotyping for these varieties, and finally to establish a

chronology of precocity for many varieties and characterize phenotypic variability for a large

number of V. vinifera cultivars (comparison of different genotypes in the same environment).

Materials and methods – The VitAdapt plot consists of 21 white grape varieties and 31 red grape

varieties. All varieties (one clone per variety) were grafted onto a single rootstock. Fifty vines per

variety were planted, with 5 replicates of 10 vines, planted randomly in 5 blocks. Measurements

focus on phenology (budding, flowering and veraison) and grape composition throughout the

ripening period. From mid-veraison to "ripe" grapes, many parameters are monitored weekly: the

weight of 100 berries, sugars and °Brix, total acidity, malate and tartrate, Yeast Available

Nitrogen, potassium and pH. We also conducted measurements to assess the vigour and others

agronomic parameters: pruning weight, mineral status, yield components. The effect of water

status on berries is obtained through measurements of δ13C on grape must at harvest. The

sensitivity of the varieties to pests and diseases is also investigated. Since 2015 microvinifications

have been initiated on some varieties of the VitAdapt plot.

Results and discussions – Phenology is assessed when 50% of the organs reach a given stage (bud

break, flowering, veraison). The varieties are classified according to their precocity. Major

differences in precocity were recorded among varieties, with mid-bud break extending over 30

days on average between 2012 and 2015, with mid-bloom extending over 20 days on average. For

veraison, we measured the colour change in red varieties, and the change in texture or softening in

white grapes. A large variability in the timing of mid-veraison was also observed, extending over

40 days on average. The varieties could also be ranked according to different parameters of

ripening, like the day they reach a given sugar level. Varieties are grouped according to the

parameters of ripe berries by Principal Component Analysis.

Conclusions – The plot was planted in 2009 and phenotyping started in 2012. Data have been

accumulated for four vintages. This will allow us to start multi-year analysis in order to study the

impact of climate variability. A better understanding of how these varieties behave will help

growers to choose the varieties according to current and future climatic conditions.

Acknowledgments – The authors wish to thank the Aquitaine Regional Council and the CIVB

(Conseil Interprofessionnel des Vins de Bordeaux) for their financial support, they are grateful to

ENTAV and Domaine de Vassal for providing wood for grafting and to technical staff for their

assistance.



Climate change and vineyard irrigation: a decision support tool

for wine growers.

M. Duputel

1, M. Gelly

1, S. Djafour

1, P. Stoop

1

1iTK, Clapiers, France

Vineyard adaptation to climate change is one of the biggest challenges for viticulture. Wine

quality is closely linked to the concept of “terroir” that suggests matching agro-climatic

conditions with growing practices. Logically the increasing temperature and the change in rainfall

pattern, expected in the next decades, should bring changes in wine-making practices.

Mechanistic modelling enables to better assess the impact of climate change on wine production

and ultimately to promote alternative solutions. As an example, the ITK Company carries out a

study on the effect of climate change on water deficit of representative vineyards located in

Costières (Gard) and Pessac (Gironde).

This study is based on simulations carried out with iTK Vigne software developed within a

collaborative project involving INRA, CIRAD, IRSTEA, Languedoc wine-growers’ cooperatives,

the chamber of agriculture and the climate association of Hérault. The study investigates the

vineyard water deficit over a 150 years period and the impact of these changes on irrigation

management. The effect of cover crop on water deficit is also assessed in Pessac as it represents a

common practice in the region. Finally, the evolution of the cool night index (CNI) is investigated

the month preceding vine-harvest, as it is related to the aromatic potential of wine and may evolve

in the next decades.

The retrospective study first shows that the management mode prescribed by the specifications of

“Costières de Nimes” and “Pessac-Léognan” appellations well matched for wine production

without irrigation over the beginning of the past half century. However, climate shift then led to

an increasing water deficit justifying the use of precision irrigation. Prospective results in

Costières indeed show that production objectives should require doubling water input until 2100.

Prospective results located in Pessac show a similar trend, however according to the more clement

climate point out overall two times less water requirement. Results also underline higher water

consumption with cover crop compared to bare soil, which is more pronounced under the more

pessimist climate scenario. However, this effect remains negligible on water deficit. This

underlines the need to consider other strategies, instead of cover crop management, for saving

water the next century. In parallel, the expected earliest vine-harvest date (from 2 weeks up to 1

month) combined with the increasing temperature, should significantly alter the CNI in both

regions (up to 6°C). This can be very problematic for wine quality and difficult to counter except

by using late varieties.

These theoretical results already show that iTK Vigne is a relevant tool to quantify the effect of

climate change on potential wine quality and its interaction with vineyard’s management

according to different climate scenarios. In this domain, mechanistic models have decisive

advantages compared to physical measurement they deliver a continuous follow up of base water

potential. It can be used both retrospectively on past field experiments and prospectively using

future climate scenarios.

Acknowledgments: This work was supported by ITK Company. We acknowledge Yves Bidet

from Meteo France for his valuable climate model expertise. This project was co-funded by the

European Union, the Region Languedoc-Roussillon, and BPI France.



Impact of post-veraison trimming on yield components and ripening in two

different environments in cv. Sangiovese

I. Filippetti

1, G. Allegro

1, E. Colucci

1, C. Pastore

1, G. Valentini

1

1Department of Agricultural Sciences, University of Bologna, Bologna, Italy

Climate changes, in recent decades, have resulted in an increase of temperature, also reducing the

ripening period of many grape berries varieties. These conditions, associated to other contributing

factors, such as the general improvement of agricultural techniques, have caused in many

viticultural areas too fast accumulation of berry sugars during ripening with excessive alchool

level in wine. In red grapes these conditions are associated to unbalanced accumulation of

phenolic substances during ripening and recent researches have suggested that the source

limitation during ripening through the application of trimming, defoliation or anti-transpirant

products around veraison is able to reduce sugar accumulation (Filippetti et al., 2015). of the

canopy around veraison may help to reduce sugar accumulation

To better understand how the leaf removal after veraison may modify yield components and

berries composition, we here report the results of two independent experiments conducted in two

different areas for Sangiovese, the most widely cultivated red grape in Italy.

The first study was conducted from 2009 to 2011 in a low-vigor hillside vineyard with no

irrigation, while the second was conducted from 2012 to 2014 on a high-vigor and well-watered

lowland vineyard. In both the experiments, vines were drastically trimmed (50% of leaves

removed) at the end of veraison (berry sugar concentration around 15–17 °Brix) and the effects on

sugar accumulation, yield and vegetative parameters were registered in comparison to untrimmed

vines. In parallel, anthocyanins and seed tannins deriving from berries of trimmed and untrimmed

vines were analyzed for total concentration (hillside) or for their extractable portion using a wine-

like solution (lowland). In high vigor vineyard the trimming at the end of veraison was able to

reduce the concentration of sugar in comparison to control without inducing substantial changes

in yield components and in the concentration and composition of extractable anthocyanins and

seed tannins. In low vigor vineyard similar results were obtained in 2009 and 2010, when grapes

of trimmed vines had lower sugar concentration compared to control, with no differences on

anthocyanins and seed tannin concentration. Unlike this in 2011, leaf area limitation was

insufficient to reduce sugar accumulation, because yield constraints were observed and the leaf

area to yield ratio was maintained within the optimal range. On this base the reiteration of strong

post-veraison trimming should be carefully evaluated according environmental and vine status as

in low-vigor area this technique may showed a consequent compensatory mechanisms inducing a

reduction of the yield probably following an excessive depletion of carbohydrate reserves.

Acknowledgments: Partially funded by the Italian Ministry for University (PRIN 2009 Grant).

References:

Filippetti I., Movahed N., Allegro G., Valentini G., Pastore C., Colucci C. and Intrieri C.. 2015.

Effect of post-veraison source limitation on the accumulation of sugar, anthocyanins and seed

tannins in Vitis vinifera cv. Sangiovese berries. Australian Journal of Grape and Wine Research

21, 90–100.



Grape biodiversity of the vine is a resource to challenge the climate change:

a case of study in Sardinia

G. Marongiu

1, D. Campus

1, M. Farci

1, O. Graviano

1, F. Piras

1, L. Demelas

1, D. Del Piano

1,

S. Secci1, G. Damasco

1, F. Manconi

1, G. Lovicu

1

1AGRIS Sardegna, Cagliari, Italy

Sardinia is the second largest island in the Mediterranean and is characterized both by a large

population of wild vines and by an ancient history of wine production, whose oldest traces date

back to the Bronze Age (1500 BC.). The high number of individuals of Vitis vinifera ssp sylvestris

and ancient history gave the result of a large number of autochthonous grape varieties, still present

particularly in ancient vineyards.

A high percentage (about the 50%) of the Sardinian grape production is linked to 2 varieties:

Cannonau (Grenache) and Vermentino grapes, which are usually harvested, respectively, between

the last week of September and first of October and the first week of September. The hypothetical

rise in average temperatures could result in changes in phenology and wine characteristics of these

2 varieties. For instance, the influence on Cannonau wines could cause a higher alcohol content

but in the same time a lower content in anthocyanins and polyphenols. In the case of Vermentino

the increase of temperature could determine wines more alcoholic and a reduction of hints.

With the aim of avoiding the problem of unbalanced wines, the phenology, the production and the

quality of grapes and wines from a group of late ripening native varieties have been studied in a

three year trial. The study has identified varieties able to produce both wine with similar

characteristics (than those made from Cannonau and Vermentino) and new kinds of wine with

original organoleptic features.

Acknowledgments : Research supported by regional law n. 7/2007 of Sardinia Region (project

A.K.I.N.A.S.)



A second spur pruning to delay the cycle of the vine up to two or three

months

F. Martínez de Toda

1, W. Zheng

1, J. García

1

1Instituto de Ciencias de la Vid y del Vino, University of La Rioja, Logroño, Spain

The aim of this work was to evaluate a second spur pruning as a tool to substantially delay vine

cycle and ripening of the grapes and escape the negative effects of high temperatures.

During the last few years, there is an earlier stage of development in vine phenology (Jones et al.,

2005; Duchene and Schneider, 2005). As a result of that, berry ripening is taking place during the

warmer period (Webb et al., 2007, 2008).

In warm climatic conditions, the sugar concentrations of red varieties reach more than sufficient

levels for obtaining high quality wines, but this is often not the case with colour. This relative

stability of sugars compared to the sensivity of anthocyanins to temperature is due to different

temperature ranges for optimal activity of the enzymes producing sugars (18 to 33 ºC) and

pigments (17 to 26 ºC) (Iland and Gago, 2002; Sadras et al., 2007). This same phenomenon occurs

in white varieties, resulting in white wines with high alcohol content and low aromatic content

and acidity. Especially, several studies indicate that the trend towards high temperatures during

berry development, has a negative effect on berry composition and wine quality (Lacey et. al,

1991;. Mori et. al, 2007; de Orduña, 2010; Keller, 2010; Sadras y Moran, 2012).

There are several viticultural strategies to mitigate this effect trying to delay ripening: reduced leaf

area (Stoll et al., 2009, Intrieri y Filippetti, 2009; Martínez de Toda et al., 2014), late and minimal

pruning (Martínez de Toda et al., 2015), increasing yield (Kliewer y Dokoozlian, 2005),

increasing irrigation (Cooley et al,, 2005), etc., but the achieved delay generally not goes far

beyond 15 or 20 days.

In this work, we propose an alternative strategy to delay the vine cycle and, therefore, ripening

much longer, even up to two or three months, which can be very interesting in extremely hot

conditions, in which the harvest normally takes place in August.

The experiences were developed during 2015 in experimental vineyards of the University of La

Rioja, inside Rioja appelation, North of Spain. Several treatments were applied, at five different

dates from before flowering to after fruit set, consisting of performing a second pruning on the

new shoots developed in the year, leaving two buds spurs and looking for these buds sprouting.

Besides getting a good fertility of buds, formed and developed in the same year 2015, the results

show a delay in the vine cycle and, therefore, in the grape ripening of up to two or three months,

depending on the date of the second pruning.



High-resolution thermal imagery to estimate water status variability within

a vineyard

L.G. Santesteban

1, S.F. Di Gennaro

2, C. Miranda

1, J.B. Royo

1, A. Matese

2

1Dpt. Prod. Agraria, Univ. P. Navarra, Pamplona, Spain

2Institute of Biometeorology, National Research Council (IBIMET-CNR), Florence, Italy

Precision viticulture has focused to date mainly on the analysis of the variability of vegetative

growth within a vineyard. This approach has been shown to have significant limitations, since it

only considers – direct or indirectly – part of the factors determining vineyard yield and harvest

quality. This limitation can be particularly true in arid and semi-arid regions, where water

availability is known to be crucial for both yield and quality. With this regard, remotely acquired

thermal imaging can be a useful tool to estimate within field variability in water status, since it

allows determining canopy temperature, which is related to transpiration and, as a consequence, to

plant water status. Thermal indices were developed in the 1960s using IR thermometers, and their

use as research tools increased when thermal cameras were developed. However, it is now, when

thermal camera resolution has increased, and their weight and price decreased, when their

implementation in agricultural and viticultural systems can be fully developed, linked to the

increased availability of unmanned aerial vehicles (UAVs) that can carry these kind of sensors.

The aim of this work was to evaluate to which extent high-resolution thermal imaging allows

evaluating the existing variability in water status within a vineyard. There is some preliminary

research in this issue, but the novelty and significance of our approach is that very high resolution

imaging was used at a commercially relevant acreage (7.5 ha), and that our study measured the

natural variability in water status existing within the field, and therefore mirrors the real

conditions where vines are grown.

Data acquisition took place at mid-veraison (late July) in a cv. ‘Tempranillo’ vineyard located in

Traibuenas, Navarra, Spain. An 8-rotor UAV, designed and built within the CNR (Italy), was used

for image acquisition. This UAV has a maximum 3 kg payload, and has been optimized to carry

sensors aimed to objectively characterize within fields variability. During the flight campaign, the

UAV was equipped with two sensors: a multispectral Tetracam Snap camera, and a thermal Flir

TAU II 324 camera. Flight altitude was fixed at 70 m, giving 4 and 9 cm pixel-sizes for the

multispectral and for the thermal images, respectively. The UAV was equipped with a high

resolution GPS, that allowed following a pre-established flight itinerary and geolocalization.

Images were orthorectified and mosaicked. The information obtained from the thermal images

was then used to calculate the crop water stress index (CWSI) using dry and wet temperatures

measured in field on leaves that had been sprayed with, respectively, petroleum jelly and water.

Images were acquired in a clear-sky day around noon and, at the same time, stem water potential

(Ψs) and stomatal conductivity (gs) were measured at 13 points distributed all across the vineyard.

At each sampling point, four well exposed leaves were sampled to determine Ψs and gs. The

comparison of CSWI values with Ψs and gs allowed to observe that thermal images were suitable

to determine plant water status, as it was very significantly correlated to both (R2 > 0.65, P <

0.01). The obtained information also allowed detecting which parts of the vineyard performed

similarly from a hydric point of view, validated with δ13C values obtained at harvest.

Acknowledgments: This research was supported by the Industry Dpt of the Government of

Navarre (VITICS, Ref: IIM14244.RI1, co-funded by the EU as part of the ERDF program), and

by the Italian MIUR (Progetto Premiale AQUA to CNR).



Can we help these berries in the desert? An approach to prevent over-

exposure of berries to radiation and high temperatures

N. Walbaum1, N. Reshef

1, A. Fait

1, N. Agam

1

1French Associates Institute for Agriculture and Biotechnology of Dry-lands, The Jacob

Blaustein Institutes for Desert Research, Midreshet Ben-Gurion, Israel

Ongoing expansion of viticulture from traditional temperate regions into arid regions poses

climatic challenges such as high solar radiation, high temperatures, and low water availability, all

known to be detrimental to berry quality. These challenges are magnified further in view of

climate change and global warming. Practical techniques that address this challenge to control the

effect of elevated radiation and temperatures on fruit quality are still lacking. An agro-technique

that can potentially improve the berry microclimate is comprised of photo-selective shading nets

installed directly around the clusters, maintaining the canopy above exposed. While shading nets

have been used extensively in other fruit crops, their use in wine grapes to reduce radiation is

limited. Our aim was to study the effect of shading nets application on the micrometeorological

conditions surrounding berry clusters, subsequent berry quality and test their practical

implementation in commercial settings.

Our research was conducted at a commercial vineyard in the Negev desert, Israel (30.6080° N,

34.8030° E; 800 a.m.s.l). Cabernet Sauvignon vines were orientated in a north-north-east to south-

south-west direction, with rows angled 30° to the east. Application of shading nets was performed

immediately prior to véraison, parallel to the removal of all basal leaves covering the cluster zone

on both sides of the canopy. The following treatments were applied: fully exposed clusters,

shading net with 30% radiation block, shading net with 60% radiation block, red shading net with

30% radiation block and blue shading net with 30% shading block.

Air temperature, relative humidity, incoming shortwave radiation, and wind speed and direction

were measured continuously from veraison to harvest in the vineyard and in the vicinity of the

clusters. Diurnal and night-time berry surface temperature was measured in clusters located on

both sides of the vine row (east and west) and from all exposed directions (north, south and east or

west). Fruit size, weight, and maturity indices were measured for each treatment every week

throughout the growing season to monitor berry development.

Relative humidity and air temperature in the vicinity of the clusters was not affected by the

presence of the shading nets, implying that this technique of shading application is not expected to

increase berry rot. The diurnal pattern of berry surface temperature was modified by the presence

of the shading nets with increased temperature homogeneity correlated to decreased radiation

transmittance. Differences in temperature and seasonal thermal accumulation were found between

east and west facing clusters. Color and density properties of the shading nets affected the

radiation transmittance and intensity, with significant effect to the maximum berry temperature

and the thermal dynamics of berry warming and cooling.

These results indicate that application of shading nets through the technique we implemented can

mitigate microclimatic challenges in arid vineyards. Further analysis will indicate the effect of the

shading nets on the accumulation of berry secondary metabolites.


SESSION 4 : Perception and adaptability of climate change by the actors

ORAL

Session 4, Keynote


Does alternative choice experiment formats matter to elicit preferences and

willingness to pay?

J. M. Gil1

1CREDA-UPC-IRTA, Barcelona, Spain

Since its introduction conjoint analysis (CA) has become one of the most popular research tools to

elicit consumer’s preferences and willingness to pay (WTP). Three of the widely-used CA formats

are choice-based conjoint analysis (CBCA), ranking conjoint analysis (RCA) and best-worst

scaling (BWS). This presentation makes a comparison, in a non-hypothetical setting, of results

obtained from alternative conjoint formats in terms of estimated partworths, willingness to pay,

participants’ response consistency, and external validity of the estimated partworths.

In the first case study, the choice-based conjoint analysis and the ranking conjoint analysis

(recoded as a choice-based conjoint analysis) are compared using small and large choice sets.

Results suggest that in a small choice set setting, participants’ preferences and willingness to pay

are similar across the two conjoint analysis formats. However, in large choice sets, a divergence

between the two conjoint analysis formats emerges.

In the second case study, we compare the results from non-hypothetical choice experiment

(NHCE), non-hypothetical ranking conjoint analysis (NHRCA) and non-hypothetical best worst

scaling (NHBWS). In this case, results suggest that, independently of whether the partworths are

estimated considering only the option ranked first or the full ranking information, the three CA

formats provide similar results in terms of sign and significance of the estimated partworths as

well as the estimated WTP values. However, the results show that NHBWS outperforms NHCE

and NHRCA in terms of external validity, especially, when the full ranking information is

included in the estimation.

Session 4, oral 15


Lessons from a foresight exercise on the French wine industry

under climate change

P Aigrain

1, F. Brugière

1, J. Gautier

2, H. Hannin

3, N. Ollat

4, J.-M. Touzard

5

1FranceAgrimer, mission Évaluation, Prospective, Analyses transversales, Direction

"Marchés, Etudes & Prospective", Montreuil, France 2INAO, Commission environnement, Bordeaux, France

3SupAgro, IHEV, Montpellier, France


5INRA, UMR 0951 Innovation, Montpellier, France

Climate Change (CC) has given a renewed interest on Foresight studies, exploring at long term

the contrasted futures of socio-economic systems. IPCC used this methodology at the global level

in order to define the socio-economic conditions of different Greenhouse Gas emissions scenarios

(IPCC, 2010). Foresight Studies are now more and more tested at sectorial, value chains or

geographical scales, in order to help policy makers or economic actors to define their strategy of

adaptation to CC, which impacts could be radically different according to each sector, chain or

region (Cairns et al. 2013; Viguier et al. 2014). This exercise was conducted during the

multidisciplinary LACCAVE project, by a working group which aimed at exploring scenarios for

the adaptation of the French wine industry to CC in 2050 (Ollat, Touzard, 2014). The group,

decided to follow a new approach. After the co-construction of a common representation of the

French wine industry, the group selected 4 pre-defined adaptive scenarios by crossing the three

main dimensions of adaptation: technological innovation, spatial strategy, institutional changes.

A first “conservative scenario” integrates only incremental changes, allowing to assess the

impacts of passive adaptation; The “innovation for staying” scenario focuses on changes in

agricultural and oenological practices, trying to maintain existing vineyards at the same place; a

“migration scenario” takes into account the possibility for vineyards to move spatially according

to climatic conditions; and a “zero-regulation” scenario tests what happens when “anything is

possible anywhere”.

We collected information from three different “knowledge bases” on the relevant processes and

assumptions which can be involved in the realization of these 4 pre-scenarios: i) the outputs from

previous foresight studies on the wine industry, ii) the consultation of all the researchers working

in the LACCAVE project, and iii) a face to face survey of 42 actors of the wine industry in

Languedoc, Bordeaux and Champagne (wine producers, merchants, policy makers…). This

information was analyzed and combined by the foresight group, leading to define different

clusters of assumptions and narratives, that could be related to the trajectory of each “pre-

scenario”. This methodology thus focused more on the trajectories that lead to the 4 pre-scenarios

(and the dynamic conditions of these trajectories) than on the description of the final scenarios.

This communication presents the foresight methodology carried out by the group, the main results

of this two-year work and the lessons that this exercise can provide to both the scientific

community of “foresight studies” and the research on adaptation to climate change, specifically in

the wine industry.

References :

Cairns G., Ahmed I., Mullett J., Wrigh G., 2013. Scenario method and stakeholder engagement:

Critical reflections on a climate change scenarios, Technological Forecasting and Social Change,

80, 1-10.

IPCC, 2010. Climate change assessments Review of the processes and procedures of the IPCC,

InterAcademy Council.

Ollat, N., Touzard, J.-M. (2014). Long-term adaptation to climate change in viticulture and

enology: the Laccave project. Journal International des Sciences de la Vigne et du Vin, 1-7.

Viguié, V., Lecocq, F., Touzard, J.-M. (2014). Viticulture and adaptation to climate change.

Journal International des Sciences de la Vigne et du Vin, 55-60.

Session 4, oral 16


Climate Change Adaptation Requires Integrated, Transdisciplinary

Research Across the Value Chain: a Case Study of the Ontario Grapevine

and Wine Research Network

G.J. Pickering

1,2,4*, D. Inglis

1, A. Nassuth

1,3, A. Reynolds

1, T. Shaw

1, G. van der Merwe

1,3

1Cool Climate Oenology and Viticulture Institute,

2Environmental Sustainability Research Centre, Brock University, St. Catharines, Ontario,

Canada 3College of Biological Sciences, University of Guelph, Guelph,

Ontario, Canada 4National Wine and Grape Industry Centre, Charles Sturt University, Wagga Wagga, NSW,

Australia

*Corresponding author: Gary Pickering: [email protected]

A developing scientific consensus is that current and predicted impacts from climate change may

represent humanity’s greatest existential threat, yet adaptation responses to date have been very

inadequate. Agricultural systems are particularly vulnerable to an altered climate, with the wine

industry often considered the ‘canary in the coal mine’ for climate change, due to the narrow

geographic and climatic range required by many grape varieties. Grape and wine are economically

important components of Canada’s agri-food sector, with the Ontario wine industry - Canada’s

largest - generating over $3 billion in economic impact each year. However, current and projected

climate conditions threaten the industry. These threats include the unpredictability of extreme

weather events such as early freezes, mid-winter thaws and spring frosts which affect the region’s

ability to produce quality wines. Additionally, increased pest pressure, including from

Coccinellidae beetles, and a relatively limited range of established wine styles further reduce the

resilience of the industry.

This paper gives an overview of the work of the Ontario Grapevine and Wine Research Network

(OGWRN) under its mandate to deliver the research necessary for evidence-based decision-

making by the industry, as it seeks to meet the challenges of climate change. The OGWRN

consists of a consortium of universities, a college and a private research center from Ontario, with

support from the provincial agriculture ministry, industry regulatory bodies, and several

partnering vineyards, wineries and greenhouses. The Network draws strategically on many

disciplines, including climatology, viticulture, oenology, molecular biology, microbiology and

consumer science to achieve its objectives.

Highlights from the OGWRN’s work that will be presented include the development of regional

climatic models to help identify new regions in northern Ontario suitable for quality winegrape

production, and the use of both viticultural and molecular approaches to confer greater winter

hardiness to grapevines susceptible to freeze damage. Oenological examples include the

optimization of yeast and production practices to allow for the full exploitation of emergent wine

styles in Ontario, including sparkling and appassimento wines, and the development of novel

techniques to remediate juice/wine containing elevated levels of taint compounds associated with

warmer winters and increased weather volatility. We conclude that an integrated response to

climate change across the value-chain is needed for the wine industry to successfully adapt, and

meet the challenges and realize the opportunities afforded by a changing climate. This requires the

incorporation of transdisciplinarity as a core strategic principle of research and planning that

support this goal.

Session 4, oral 17


Climate Change and Economic Challenge Strategies for Vinegrowers,

Winemakers and Wine Estates

M.-C. Pichery

1

1LEDi Université Bourgogne - Franche Comté - Dijon, France

uBFC CNRS UMR 6307 - Inserm U 1200

For wine areas around the world, nature and climate are becoming factors of production whose

endowment becomes a stake beyond the traditional economic factors: labor, capital and land.

They strongly influence agricultural and environment conditions for production. Because of

global warming new production areas are suitable for cultivation of vines, entrants appear

embarking on viticulture, preventive relocations are underway as well as land purchases which are

anticipated future potential, cultivation practices evolve, ....

The persons in charge of wine estates (winemakers, owners, managers, ...) have to adjust

continually to the impacts of climate change, a key and permanent concern today. In the vineyard

as in the winery or in cellars adaptation is unceasing. Observations of temporal and spatial

variability of climate requires unending monitoring in the vineyard, operations vital and costly in

time. Simultaneously a strong spatial variability of climate on tight spaces requires responsiveness

of winemakers in the vineyard because of high differences caused by local conditions

(topography, soil, subsoil ...) both in the short and medium term. For wineries individual

adjustment strategies although still implemented through the centuries have become essential or

crucial to the future of the working tool. The wide variety of situations (climatic, geographical,

economic, ...) requires new decisions to protect properties from incidents and accidents; the

consequences of climate may jeopardize the survival of the wine estates especially the small ones

(coverage risks, geographic diversification, ...).

Strategic choices have to be decided at each step of the production from the plantation of a vine

(grape variety, vine planting density, ...) to commercialization (bulk, bottle, ...) through the kind of

wine to produce (red, pink, dry, sparkling, ...). If necessary a reorganization of the vineyards

(orientation of rows, local or regional movements) is a costly process. Moreover collective

decisions become indispensable such as water management, detecting diseases or parasites, fight

against bad weathers, ... They can be critical for the survival of the vineyard and the perpetuation

of wine estates.

Furthermore the heterogeneity of demand becomes a new concern: consumers have expectations

and tastes very different from one end to another in the world (colors, varieties, wine types, ...),

opportunities, circumstances and consumption occasions are extremely varied: with or without

food, at home or not, during social gatherings or moment of relaxation ... What products offer? In

addition a new challenge is the preparation of consumers (novices, regulars, fans, connoisseur,

wine lovers...) to modifications in the organoleptic characteristics of wines; climate change

influences the aromatic balance of wines and consumers have to be initiated to accept them.

The presentation aims to highlight the critical decisions and strategies (technical, economic,

managerial, commercial, ...) for individual and collective responsible of the wine estates to ensure

the economic and financial profitability, a challenge for the sustainability of their domains, while

being attentive to the requirements of customers (individuals, wine shops, restaurants,

supermarkets, ...) on domestic and international markets.

Session 4, oral 18


Climate change and sustainability in English wine production

C. J. Foss

1, M. Marangon

2

1Head of Wine Department, Plumpton College, Lewes, UK

1Chair of the South East Vineyards Association, Member of the UKVA Council

1Chair of the English Wine Research & Development group 1Chair of the Programme Workstream for the ICCWS2016

2MSc Course Leader, Plumpton College

Situated above the 50°latitude and with average heat summations below 900 (10°C base), the

wine regions of the United Kingdom now have a successful, booming industry (average increase

in vineyard surface of 11.9% per year) and a very strong market for our products. This

presentation will illustrate the challenges facing the English wine industry and how it is working

to resolve them.

The English wine industry dates back to the times of the Roman occupation, but commercial wine

production ceased in 1920. It was revived in the 1950s, working with interspecific hybrids and

Germanic vinifera crosses, but around 10 years ago it realised that it could produce world-class

sparkling wines using Champagne varieties. We are now undergoing a very successful renewal,

producing an outstanding luxury product, for which there is a high demand on the home market,

and considerable opportunity for the development of exports and wine tourism. However, with

only around 2000 hectares of vineyards, this is a small and rather inexperienced industry, very

significantly challenged by our maritime climate.

The English wine industry is striving to get itself organised, maintain the quality of its wine and

promote itself effectively in the marketplace. It also needs to gain a high level of technical skill,

work with changing climatic conditions, and define the key and unique characteristics of its

product. A key contribution to this development has been the WineSkills project. This

government-sponsored initiative has up-skilled the industry through regular workshops and

masterclasses delivered throughout the wine-producing regions of the UK, focusing on

vinegrowing, winemaking and wine business. However, most interesting is the work that has been

done comparing and assessing the suitability of 18 sustainability schemes from around the world

and producing a list of sustainability guidelines that are very practical and uniquely suitable for

the UK. These have been promoted on the WineSkills website (www.wineskills.co.uk ) together

with further information to enable wine producers to put the guidelines into action. This project

may interest delegates from regions which are developing their own sustainability schemes.

Further research initiatives, for instance on site identification, have been successfully completed,

and Plumpton College played a key part in the development of the Lifelong learning project e-

VitiClimate. It is now a partner in the Life-ADVICLIM project, and has gathered a year’s high-

resolution precise data on the effect of weather on a vineyard, including phenological

development, vigour, yield and ripeness parameters. We would like to present these preliminary

results to the delegates of the Sustainable grape and wine production in the context of climate

change Conference.

We would also like to promote (either orally or by poster) the 9th International Cool Climate Wine

Symposium, which will be held in Brighton on 26—28th May 2016. Supported by a wide variety

of speakers with international reputations, this meeting of the world of wine will tackle issues

which are highly relevant to climate change, such as emerging vineyard pests and diseases,

managing climate-based variability and optimising cool-climate wine styles. For more

information, see www.iccws2016.com .

http://www.wineskills.co.uk/

http://www.iccws2016.com/

Session4, oral 19


Sustainable wine production in South Africa within the context of climate

variability.

A. E. Strever

1, T. O. Southey

1

1Department of Viticulture and Oenology, Stellenbosch University, Private Bag X1,

Matieland (Stellenbosch) 7602, South Africa

The South African wine industry has always been faced with challenges regarding climate and

soil variability, both with regards to long and short term decision making. Recent studies also

included South Africa in alarming statements about expected decrease in suitability of some areas

for grapevine growing, without adding local knowledge about current production area variability

to the debate. It is also very clear in recent years that water availability will be crucial for wine

production in certain areas, and that predictions with regards to rainfall spatial and temporal

variability are very difficult to do reliably.

Our goal with this communication is to present an overview of our approaches with regards to

climate data analysis, with incorporation of remote sensing and other technologies in order to

ensure the best possible basis of information of vineyard establishment and management decision

making within the climate variability context. Furthermore we aim to present an overview of the

diversity of existing climatic and soil conditions in which viticulture is practiced, to provide a

perspective on possible adaptations and expected effects of possible future climate shifts/change.

We also present approaches to relate grapevine functioning (reproductive and vegetative) to

climate conditions from a combination of field measurements and remote sensing technology

Session 4, oral 20


Assessing local climate vulnerability and winegrowers’ adaptive processes

in the context of climate change

E. Neethling

1, 2*, T. Petitjean

1, G. Barbeau

1, H. Quénol

2

1URVV-INRA, UE1117, UMT Vinitera², Beaucouzé, France

2COSTEL-CNRS, UMR 6554 LETG, Université Rennes 2, Rennes, France

Adaptation to climate change is one of the biggest challenges facing the viticulture sector.

Temporally, adaptation strategies and policies have to address impacts in both the short- (e.g.

wine quality) and long-term (e.g. varietal suitability), whereas spatially, place-based and context-

specific adaptations will be critical. In addressing these challenges, contextual vulnerability

assessments have emerged as key elements to inform adaptation, by accounting more explicitly

for the local factors and processes defining vulnerability and winegrowers’ adaptive responses to

changing environmental and socio-economic conditions. In this context, this study assessed local

climate vulnerability and winegrowers’ adaptive processes in two regulated wine producing areas

in the Anjou-Saumur wine growing sub-region (France). For the purpose of the study, qualitative

data were collected through semi-structured interviews with thirty winegrowers.

Climate-related exposure and sensitivity were dependent on many contextual factors (e.g.,

northern geographical position, wine regulatory frameworks, local environmental features)

interacting with the regional oceanic climate. Those climate and other non-climate related

variables brought about significant changes in winegrowers’ decision-making and management

practices, varying greatly over time and space. Changing viticultural practices have enhanced

winegrowers’ adaptive responses, which are primarily reactive (e.g. harvesting, winemaking) or

anticipatory (e.g. canopy and soil management) to short-term climate conditions. Winegrowers

described changing trends in climate- and grapevine-related variables, where modifications in

vine behavior were attributed to regional climate changes and evolving viticultural practices. With

regards to future climate trends, winegrowers’ displayed a great uncertainty, placing the most

urgent adaptation priority on short-term strategies, while changing grapevine varieties and using

irrigation were identified as last resort strategies. The study concludes by discussing the

implications of these findings in the context of climate change adaptation in viticulture.

Session 4, oral 21


The french wine AOC and the challenge of climate change

J. Gautier

1

1INAO - Institut national de l'origine et de la qualité, Bègles – Bordeaux, France

Corresponding author: [email protected]

The concept of AOC, set up in 1936 by the French authorities, is based on the existence of a

strong link between wines and their terroir: the AOC wines presents specific characteristics,

exclusively due to a particular geographical environment with its inherent natural and human

factors. In 2015 France includes 360 wine AOCs, spread over its entire territory. To qualify for

AOC each producer must comply with all production conditions proposed collectively by all

producers and approved by the INAO and the Public Authorities. All AOC will have soon to

answer to several challenges, such as the alcohol content of wine (correlated with public health

policies), or the reduction of inputs (related to environmental societal concerns). The AOC also

will have to answer to the challenge of climate change: if adaptation measures are insufficient, the

result will be a significant changes in characteristics of the wines : higher alcohol content wines,

modification of other characteristics of wines (acidity, tannic structure, ...). Furthermore the likely

increase of extreme weather events (drought, heat waves, and even heavy rainfall) must already be

taken into account by the producers, the vineyards being planted for several decades.

They will also have to adapt their farming practices to limit the consequences of climate change:

change of vine control system with evolution of leaf / fruit ratio, reflection on weed, ... allowing in

a first time to master the consequences of climate change. In a longer term the introduction of

plant material (rootstocks, varieties) more suitable for extreme drought conditions, and/or with a

longer growing season (in order to avoid the grape harvest at the height of summer, which in turn

will warmer), will be studied. Like other economic sectors, AOC producers will probably be

exhorted to reduce greenhouse gas emissions related to the production cycle, like promoting

carbon storage in the soil of their plots.

In conclusion AOC producers, through their professional organizations, will be invited to

appropriate as soon as possible the topic of climate change, and to consider a strategy to limit its

consequences. The different evolutions of production conditions shall be preliminary tested with

experiments, to ensure that the products obtained always fit with the characteristics for which

each AOC was initially recognized.

Session 4, oral 41


Climate change: issues and actions for the Bordeaux wine industry

L. Charlier

1

1Bordeaux Wine Council (CIVB), Technical service, Bordeaux, France

Corresponding author : [email protected]

Bordeaux wines industry, based on 115,000 hectares of vineyards, 6,600 AOC wineries and 300

wine merchants firms, is investing for more than 10 years in the acquisition of knowledge related

to adaptation to climate change. So far, climate change has been generally positive to the quality

of Bordeaux wines (maturity, health status , ...). Nevertheless the advance of the growing season,

higher temperatures or limitation of water resources would require the reconsideration of the

practices to maintain the quality and the typicity of our wines. Solutions exist or are under

evalutation in the vineyard: management of the leaf area to fruit ratio, canopy management, plant

material, ... The difficulty will be to encourage the evolution of the practices at the right speed and

on the entire vineyard. This presentation will summarize the current and possible adaptations for

the Bordeaux vineyard.

Session 4


Adaptive Capacity for Climate Change Adaptation in the Wine Industry:

Concepts and Measurement

K. Pickering

1, R. Plummer

1,2, T. Shaw

3,4, G. Pickering

1,4,5,6

1Environmental Sustainability Research Centre, Brock University, St Catharines, ON,

Canada 2Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden

3Department of Geography,

4Cool Climate Oenology and Viticulture Institute,

5Department of Psychology, Brock University, St Catharines, ON,Canada

6National Wine and Grape Industry Centre, Charles Sturt University, Wagga Wagga, NSW,

Australia

Climate change is significantly impacting the international grape and wine industries. Wine

regions throughout the world are experiencing climate change through the gradual alterations in

growing seasons, temperature, and precipitation, but also through the occurrences of extreme

weather events that have negative consequences for quality wine production. These impacts are

varied, and very dependent on location, but include increased grapevine/bud freeze damage,

alterations in berry maturity and composition profiles, increased disease and pest pressures,

reduced yields, and excessive alcohol concentration in wines. Future climate predictions indicate a

greater frequency and intensity of extreme weather events along with the movement of optimal

wine production areas pole ward, costal, and to higher elevations.

Against this backdrop, adaptation to climate change is occurring in several wine regions, however

a comprehensive assessment of the factors affecting the adaptive measures is yet to be conducted.

Adaptive capacity encompasses multiple elements necessary for adaptation to occur, and the

access a wine region has to these resources can strengthen or undermine its overall capacity to

adapt to climate change. The main objective of the current study was to develop a conceptual

framework for assessing the adaptive capacity of a grape or wine region, and apply it to the

Ontario wine industry.

The framework derived consists of a three-tiered structure, comprising eight strategic and

operational determinants (financial, institutional, technological, political, knowledge, perception,

social capital, and diversity). A comprehensive questionnaire was created from this framework

that consists of 26 statements to which industry participants (42 Ontario wine industry members)

indicated their level of agreement on Likert scales. The results indicated that the determinants

related to perception, diversity, and knowledge had the highest degree of capacity, while

technological and political determinants show the least. Grapegrowers and winemakers gave

different patterns of responses, although overall, industry stakeholders were aware of both

negative and positive impacts climate change could have on wine production. Our findings are

discussed further in the context of opportunities to enhance adaptive capacity in the Ontario

grape/wine community, and the applicability of this new tool to other wine regions around the

world.

Session 4, oral 43


Adaptation Strategies of Bordeaux's winemakers to face climate change

A. A. Ugaglia

1, E. Giraud-Héraud

2, S. Pérès

12, Y. Surry

3

1Bordeaux Sciences Agro, Gradignan, France

2Univ. de Bordeaux, INRA, ISVV, Villenave d'Ornon, France

3SLU, Department of Economics, Uppsala, Uppsala Lan, Sweden

According to the fourth evaluation report of the Intergovernmental Panel on Climate Change

(IPCC), “global warming is undeniable” (IPCC, 2013). Schultz (2000) has been the first one to

really assess the impacts of climate change on viticulture. Vineyards are particularly sensitive to

climatic factors, notably to temperature and precipitation. Changes in historical and future average

temperature are expected to influence the overall quality of wines, and climate changes present

significant challenges for this industry, now and into the future (Ashenfelter and Storchmann,

2014)

Almost nothing is known about the potential responses and efficient adaptation strategies of wine

growing regions to these different changes. Yet there is no doubt that climate change scenarios

will cause major upheavals in the global wine growing sector, be it in terms the spatial

distribution of vineyards or wine growers’ practices. Although Hannah et al. (2013) have been

predicting a 25 to 73% decrease in winegrowing areas by 2050 (ceteris paribus, without any

adaptation), there is a need to analyze how the wine producing firms will adapt their strategies for

wine production. This raises several questions, including which are the most effective and/or

preferred strategies related to the expected changes; what are their determinants; and how are

winemakers to be supported as they embark upon this change trajectory. But so far, there seems to

be a lack of interest in analyzing adaptation strategies at firm level, the latter being nevertheless

essential to study the future of the wine industry in the long run.

From this perspective, we conducted an original survey (2014) with a focus on two particular

groups of appellations (Bordeaux-Bordeaux Supérieur and Saint-Emilion) on adaptation strategies

of Bordeaux wine producers. The aim is first to highlight whether grape growers are aware or not

about climate change and whether they manage it in the short and long run. Then, our work

consists on identifying different types of (long and short term) adaptation strategies for different

vintages in relation to their economic and structural drivers. A probit model is first developed to

analyze the drivers (including economic, environmental, structural and, technical variables) that

could explain whether or not wine producing firms take into consideration in their short run

production decisions the impact of climate change captured by the so-called run effect “effet

millésime”. Then, a multivariate correspondence factor analysis (CFA) is conducted to

characterize the types of adaptation behaviours for different and specific vintages in Bordeaux.

We show that wine producers are really aware of climate change. In our case, the results

demonstrate a significant short-term adaptation of wine producing firms, technical for the main

part of time (more than during the vinification process or the commercialization) and in relation

with the characteristics of each specific vintage. Wine producers therefore seem to include every

year the vintage in the development of their technical management strategies. Finally, we also

show that wine producers in their responses to the survey tend to make contradictory statements

and arguments concerning the implementation of longer term adaptation strategies to cope with

climate change, and more especially all issues and questions dealing with the modification of

appellation specifications.

References:

Ashenfelter, O., Storchmann, K. (2014) "Wine and climate change", AAWE Working Paper No.

152 (http://www.wineeconomics.org/aawe/wpcontent/uploads/2014/03/AAWE_ WP152.pdf).

Hannah L., Roehrdanz P.R., Ikegami M., Shepard A.V., Shaw M.R. Tabor G., Zhi L., Marquet

P.A., Hijmans R.J. (2013) "Climate change, wine, and conservation", PNAS.

IPCC/GIEC (2013) Volume 1 : changements climatiques 2013 - les éléments scientifiques,

Contribution du WG I (2013) au 5ème rapport d’évaluation du groupe d’experts

intergouvernemental sur l’évolution du climat.

Schultz, H.B. (2000) “Climate change and viticulture: a european perspective on climatology,

carbon dioxide and UV-B effects”, Australian Journal of grape and wine research, 6, pp. 1-12.

Session 4, oral 44


Adaptation Strategies to Climate Change in the French wine industry:

The role of networks connecting wine producers and researchers

J. Boyer

1, J.-M. Touzard

2

1SupAgro, UMR 0951 Innovation, Montpellier, France 2INRA, UMR 0951 Innovation, Montpellier, France

Recent works in innovation economics suggest that firms adaptation to Climate Change (CC) will

depend on their capacity to build and share knew knowledge at regional level, and therefore to

create efficient local networks supporting such a learning process (Rosenzweig,Wilbanks 2010).

The relations between firm managers and research centers or universities are supposed to play a

key role in these networks (Giuliani, Morrison 2010). This issue is particularly relevant in the case

of the wine industry, which is structured into different regional vineyards, each of them being

impacted by climate change (Holland, Smit 2010, Viguier et al. 2014). In this communication we

analyze the adaptation strategies of wine producers in three French vineyards (Bordeaux,

Champagne, Languedoc) and how these strategies can be supported by the construction of

networks between wine producers and researchers or engineers working in R&D organizations.

We characterize these strategies by three analytical dimensions : i) the perception by the actor of

the CC issue, ii) the development of new actions or practices responding to this issue, and iii) the

construction of personal networks in order to access to information on wine and CC. Our

hypothesis are that i) these networks are built by both the producers and the researchers, involving

intermediary actors and mediations, and ii) these networks depend on different factors including

personal characteristics of both producers and researchers and inherited regional institutions, with

a specific role of “regional wine interprofessional organization”.

A “two side survey” has been conducted in Languedoc, Aquitaine and Champagne: on one side,

87 producers of AOC wines were asked on their perceptions of CC, their changes of practices

(variety, location of plantation, agronomic practices, enology…) and the relationships they have

used in order to get knew knowledge for these changes ; on the other side, 94 researchers and

engineers (in the 3 regions, from Inra, University, IFV, Agriculture chambers or interprofessional

organizations) were asked on their involvement in the production of knowledge on CC and the

social networks which are connecting them to the wine producers. We codify the answers with

criteria representing both the actors strategy (including self-centred networks) and potential

explicative variables, which influence have been statistically tested.

Our main results show that both the perception of CC by wine producers and the network they

built to improve their knowledge are statistically different according to the region. Personal

trajectory (education, professional responsibility) and production patterns (conventional, organic

or high quality wines) also influence the adaptation strategies. On the other side the researcher’s

involvement in knowledge production on “wine and CC” is not sufficient to improve manager’s

adaptation to CC. The researcher propensity to contribute to CC adaptation is influenced by his

research field, his regional location and his organizational affiliation. Finally, we discuss these

results by referring to the Innovation Systems perspective. Both regional and relational

dimensions of innovation systems emerge as a relevant lever for climate change adaptation.

References :

Giuliani, E., A. Morrison, et al. (2010). Who are the researchers that are collaborating with

industry? An analysis of the wine sectors in Chile, South Africa and Italy. Research Policy 39(6):

748-761.

Holland, T. and B. Smit (2010). "Climate change and the wine industry: current research themes

and new directions." Journal of Wine Research 21(2/3): 125-136.

Rosenzweig, C. and T. J. Wilbanks (2010). "The state of climate change vulnerability, impacts,

and adaptation research: strengthening knowledge base and community." Climatic Change

100(1): 103-106.

Viguié, V., Lecocq, F., Touzard, J.-M. (2014). Viticulture and adaptation to climate change.

Journal International des Sciences de la Vigne et du Vin, 55-60.

Session 4, oral 45


"Is global warming desired by wine consumers?"

A. Fuentes Espinoza

1, S. Pérès

2, A. Pons

3,4,5, S. Tempère

3,5, P. Darriet

3,5, E. Giraud-Héraud

1

1Univ. de Bordeaux, INRA, GREThA UMR CNRS 5113, Villenave d'Ornon, France

2Bordeaux Sciences Agro, ISVV, Villenave d'Ornon, France

3INRA, ISVV, USC 1366 Œnologie, Villenave d'Ornon, France

4Seguin Moreau France, Z.I. Merpins, B.P. 94, Cognac, France

5Univ. de Bordeaux, ISVV, EA 4577, Unité de recherche OENOLOGIE, Villenave d’Ornon,

France

Many studies consider that Global warming (GW) will have significant consequences on the

chemical composition of grapes harvested. Hence the characteristics of wines with a certification

of origin may change considerably. In this paper we argue that, following the strategic choices of

some producers delaying the harvest date and the grapes maturation, these “GW wines”are in fact

already available on the market. Hence we propose a lab experiment using both sensory analysis

and experimental auctions in order to elicit the consumers’ evaluation of these wines. We show

how consumers are affected by the different sensory characteristics (visual, olfactory and

gustatory) and we find instability of preferences, with a final hierarchy detrimental to the GW

wines.

The experimental plan began with the selection of three different wines within the same

appellation of origin (AO) in Bordeaux. We chose an AO where the variety “Merlot” is the most

commonly used grape because this variety is well known to be extremely sensitive to global

warming. In a sensory analysis laboratory 48 experts (professionals and oenologists) evaluated 30

red commercial wines from the 2010 vintage. This evaluation was essentially olfactory according

to the typicity of the wines and the expressions of overripe grapes (e.g. jammy fruits). Using the

‘Majority Judgment’ technology (Balinski and Laraki, 2013) we then selected two wines which

are much appreciated by experts but diametrically opposed according to GW symptoms: wine A

was the one with the lowest intensity of overripe grapes (i.e. the “regular” wine of the AO); wine

B with the highest intensity (i.e the “GW wine”). We select also a wine C asan intermediary wine,

in relation to these criteria. Then we proposed these three wines to 184 consumers after adding a

‘pirate wine’A’, created from wine A, by an artificial addition of ethanol, in order to find the exact

level of ethanol percentage contained in the wine B. The experimental design combines both

sensory analysis and experimental auctions in order to measure the hedonic perception for

different characteristic wines and to revel the willingness to pay (using the current BDM

mechanism) for each wine and for different levels of information (Lange et al., 2002; Combris et

al., 2009). The main originality of our experiment is the introduction of habit’s effects. The

model shows the ability of consumers to discriminate wines and justify their choice based on the

global warming descriptors. We also show how to perform the various anchors of consumers

throughout the growing assessment information.

Finally, we show the fragility of judgments that can have on the short term. Therefore we

conclude that it is essential to allow time for consumers to evaluate different wines in a familiar

atmosphere, if we want to collect truly revealing information for structuring and repeat purchases.

We conclude with lessons learned from the producers’ strategies and their interest/ability to

reactagainst global warming.

References

Balinski, M, Laraki, R. (2013). “How Best to Rank Wines: Majority Judgment", in Giraud-

Héraud, E., Pichery, M.C. (Eds), “Wine Economics: Quantitative studies and Empirical

Applications”, PALGRAVE Macmillan.

Combris, P., Bazoche, P., Giraud-Héraud,E., Issanchou, S. (2009). “Food choices: What do we

learn from combining sensory and economics experiments?”,Food Quality and Preference , 20,

pp 550-557.

Lange Ch., Martin C., Chabanet C., Combris P., Issanchou S.(2002)."Impact of the information

provided to the consumers on their willingness to pay for Champagne: Comparison with hedonic

scores", Food Quality and Preference, 13, 597-608.

Session 4, oral 46


Reducing the impact of greenhouse gases on the wine sector: situation in

France and approach by the OIV

J. Rochard

1

1French Institute of Vine and Wine, Epernay, France

In 1896, the Swedish scientist Arrhenius had envisaged a global warming due to the burning of

fossil fuels in order to fight against the return of the ice. Since, the scientific community of the

Intergovernmental Group of Experts on Climate Change (IPCC) has established a strong link

between global warming and the greenhouse effect. Foresight is a difficult exercise subject to

many uncertainties. This is especially true for the climate influenced by many factors, warranting

caution is required in interpreting developments. However, the warming seems inevitable. In view

of current developments measured for fifteen years (changing the order of 0.5 ° C), it seems

plausible to imagine significant changes for the future.

The limitation of greenhouse gas emissions can result from an international approach since the

enhanced greenhouse gases effect is a global phenomenon independent of the place of emission of

gases. In view of recent developments, it seems likely that the control of greenhouse gas

emissions become a growing concern in the coming years, with consequences that will be even

better managed they have been well anticipated.

Viticulture will not escape from climate change. Beyond the adaptation of viticultural and

oenological technical itineraries to this trend, the wine industry has to limit its impact on the

greenhouse effect.

Developed by JM JANCOVICI on behalf of ADEME (French Agency for Environment and

Energy Management) and the MIES (Interministerial Mission for the Greenhouse Effect) in 2003,

Bilan Carbone method is a method to quantify the contribution of a company to the greenhouse

effect. It takes into account the six families of greenhouse gas (GHG) included in the Kyoto

Protocol. There are 3 three possible approaches according to the perimeter as desired,

characterized: 1- Internal or legal basis, for direct emissions called energy (related to the use of

energy, fossil or electric) and the so-called non-energy (related to the use of nitrogen fertilizers

and leakage of refrigerants); 2- The intermediate perimeter or added emissions, taking into

account some of the transport (internal cargo freight to customers, customers to exploitation,

transport commuting employees, employees of transport-related missions), manufacturing of

inputs, including purchase of grapes, as appropriate, as well as all the services charged to

operations; 3- The overall perimeter or Bilan Carbone, which is the comprehensive consideration

of all emissions attributable to operations, including the transport of inputs, construction of

buildings, waste management and wastewater, the Amortization of capital assets. This tool

allowed to perform measurements in various French cases and served as support to develop

climate plans in several French wine regions: Bordeaux, Burgundy, Champagne. A summary

document and extension was published IFV http://www.vignevin.com/publications/collection-

itineraires.html. Within the International Organization of Vine and Wine, a first resolution was

finalized, providing the general principles of OIV protocol for calculating the stock of greenhouse

gases for the wine sector http://www.oiv.int/oiv/info/enresolution?lang=en If contain information

on the approach to scale companies and the industry products. In addition work is currently

underway to publish particular Appendices for supplying a database and harmonize

methodologies internationally. The communication aims, from the examples and methodologies,

to shed light on this issue and propose operational actions to be implemented within the wine

industry to reduce its impact on the greenhouse effect. A particular development focus on the

inclusion of the greenhouse effect in the treatment of winery effluents comparing different

systems applicable.

http://www.vignevin.com/publications/collection-itineraires.html

http://www.vignevin.com/publications/collection-itineraires.html

http://www.oiv.int/oiv/info/enresolution?lang=en


SESSION 4 : Perception and adaptability of climate change by the actors

POSTER



Perception of irrigation practices by wine consumers in a context of climate

change.

S. Alvarez Gei

1,2, H. Ojeda

1, R. Symoneaux

2, C. Coulon-Leroy

2

1UE 999 Unité Expérimentale de Pech Rouge, Gruissan, France

2LUNAM Université, SFR 4207 QUASAV, Groupe ESA, UPSP GRAPPE, Angers, France

According to the actual simulations, there is a general agreement that water deficit will increase

and all phenological stages of vines will occur earlier in the future due to climatic change. These

major events are expected to have significant repercussion in many aspects, leading to changes in

the geographical distribution of vineyards and in wines typicality. In this sense, some terroirs

estimated today as the best plots might become less favorable for the qualitative development of

vines. Moreover, vines could be even planted on plots until now evaluated as less qualitative due

to an excessive water holding capacity.

Against this backdrop, winegrowers must adapt their practices to preserve quality and typicality of

wines or accept the consequences of a changing climate. However, flexibility in the adaptation of

cultural practices will depend on the type of product e.g. a DOP wine, and therefore irrigation is

possible only in certain cases. At short and medium terms, climate change might be controlled

with the adaptation of different cultural practices and without considering irrigation. However, at

long term, qualitative irrigation seems to be the most systematic, if not the best, cultural practice

for dealing with climate change.

The objective of this work is to evaluate consumer's opinion about the impact of irrigation on the

perceived quality of wines, in order to provide useful information to professionals and researchers

of the industry. The work was conducted in 2015 from 512 surveys on Internet. The methodology

is based on previous works that show the relevance of the concept of "consumer’s involvement"

and the concept of "involvement in environmental issues" as a criterion for consumer

segmentation and so; this segmentation was used to analyze the responses. Results show a-priori

that levels of involvement in wine and in environment are related: consumers less involved in

wine tend to be not involved in environment issues. Moreover, consumers involved in wine could

be divided in two groups: those less likely to incorporate irrigation practices and those who are

favorable and are even willing to pay higher or similar prices for wines issued from irrigated

plots. Furthermore, the level of implication in wine seems to play a role in accepting irrigation;

consumers not implicated on wine don’t have a formed opinion whereas implicated consumers

showed both for and against a reasoned irrigation as a tool to deal against climate change.

Moreover, within consumers implicated in wine, age could serve for explaining the acceptance of

irrigation since seniors consumer (≥65 years old) were less favorable to accept irrigation and

wines varieties modification but more likely to accept a plot relocation in order to maintain

quality. On the other hand, young (≤35 years old) and medium consumers (from 36 to 64 years

old) were more likely to accept irrigation and a different grape variety to preserve wine quality.

In the current scenario of climatic change, producers needs to decide the best way of dealing with

changes in wine typicality and quality. In this sense, results can help producers to understand

climatic change from the consumer’s perspective in order to best adapt theirs marketing and

technical strategies. A good communication adapted to consumer’s age and level of implication

on wine seems crucial to be implemented.



Ecophysiology of grapevine and adaptation to the environmental

constraints in vineyards of South America

G. Barbeau

1, F. Witkowsky

2, M.C. Echenique

2

1INRA UEVV, Beaucouzé , France

2Facultad de Ciencias Agrarias, UNComahue, Cinco Saltos, Río Negro, Argentina

Relatively few comprehensive studies dealing with climate change in vineyards of South America

have been conducted (Price Waterhouse Coopers, 2009 ; Quenol et al., 2014). Within the

framework of a Master module of the Faculty of Agrarian Sciences of the University of Comahue,

Neuquèn, - Argentina, in 2013-2014 a research task was carried out by groups of students on

adaptations of viticulture to environmental constraints, including climate change. This work

focused on five vineyards of South America, namely Neuquén and Cafayate in Argentina, Tarija

in Bolivia, Bio-Bio in Chile, and Canelones in Uruguay. It dealt with the characterization of the

physical factors of each area of study, the main environmental constraints, a prospective of

climate evolution according to scenario A1B (~RCP 6) of GIEC 2013 and a justification of the

adaptation strategies suggested at various space and temporal scales.

The results show very contrasted situations related to the environmental and socio-economic local

conditions which make that the concerns of the actors differ greatly from one vineyard to another.

The recommended strategies of adaptation take into account at the same time the evolution of

annual practices (soil and foliage management, protection against climatic and phytosanitary

risks, management of grapes at harvest…) and the evolution of perennial practices (choice of

plant material, choice of site and techniques of irrigation…), both at the individual and collective

levels. In addition, a great importance is given to the aspects of marketing (type of products,

markets…) as well as public policies regarding infrastructures (transportation routes, water

management), research, formation and access to the financing.

Acknowledgments. Groups of students : 1-Neuquen : Gandolfi S.C., Esteves J.M., Tello Najul

R.G. Oehrens Kissner P.A., Landerreche, S. ; 2-Canelones : Moreno Z., Sanchez A.D., Mantegna

M.M., Martín V.A., Vita L.I. ; 3-Bio Bio : Pastrana, M.M., Pero E., Sessa A.M., Lodolo X.V., De

Arregui J.A. 4-Tarija : Salaberry J.M., Simes A.B., González Flores M. 5-Cafayate : Fernández

C.J., Maero E., Prieto G. C., Gresia J.A., Vullioud M.B.

References

Price Waterhouse Coopers (PCW). 2009. Efectos del cambio climático sobre la industria

vitivinícola de Argentina y Chile. Estudio sobre los impactos y las medidas de adaptación en un

escenario de calentamiento global hacia el año 2050. Advisory Sustainability: 7-84.

Quénol H., Aruani C., Fourment M., Trapateau L., Grassin M., Briche E., Quini C., Ortiz H.,

Ferrer M., Barbeau G., Neethling E., Pinson L. et Polimeni M., 2014. Chap. 12. Changement

climatique dans les vignobles d’Amérique du Sud. In « Observation et modélisation du

changement climatique à l’échelle des terroirs viticoles ». Hervé Quénol (coordinateur). Tec &

Doc Lavoisier (Ed.) Paris. 2014. 460 pp.



Researches on "Innovative" "Sustainable" political, technical, production

process and product, communication and marketing solutions aimed at

helping to overcome the problems caused by climate change in Veneto and

Friuli-Venezia Giulia (Italy North East).

G. Cargnello

1*, G. Menotti

1, G. Teo

1, P. Bertuzzo

1, A. Bortolossi

1, G. Cecchetto

1, F. Cabas

1,

M. Gaiotto1, S. Di Giacomo

1, G. Franzin

1, E. Kante

1, M. Lipari

1, M. Lunardelli

1,

R. Lunardelli1, S. Lunardelli

1, D. Maurig

1, M. Michielin

1, L. Pali

1, M. Pecile

1, E. Parovel

1,

S. Pleshaj1, A. Skerlj

1, E. Serafin

1, M-L. Tonielli

1, R. Radikon

1, R. Zorzi

1.

1Conegliano Campus,Conegliano, Italy


After presenting 1- a basic work on the urgent need to use correct definitions and expositions, as

well as assessments "Universal or MetaEthical 4C" of "Sustainability", "Quality", “Typicality” of

"Terroir", "Zoning ", " Territoir " and " Innovation ", also, in the wine sector with regard to

climate change, a 2- 'other work which showed that climate change is a great opportunity to

improve all viticulture, even, according "Great Chain MetaEthics 4C" of Conegliano Campus 4C,

3- in this work will show the results of research conducted to help overcome the problems caused

by climate change in relation to our area, [Veneto and Friuli-Venezia Giulia (Italy North East )],

according to the philosophy, methodology of the "Great Chain MetaEthics 4C" of Conegliano

Campus 4C, our computerized algorithm which considers in harmony with each other "all"

technical, economic, environmental, social-employment, existential, ethical " MetaEthical 4C"

factors.

Research was conducted and mutually coordinated for Veneto and Friuli-Venezia Giulia (North

East of Italy) and involved aspects of policy, "territoir", "terroir", "zoning ", global production

models, communication and marketing, and more.

From research conducted in Veneto and Friuli-Venezia Giulia in the light of the current

"significant" climate change and official information on future climate change had emerged that

by acting in an innovative way according to our logo "A step back to the future" on "territoir",

"terroir", " zoning ", global production models [land preparation, genotype, planting layouts, types

of cultivation, pruning, management of: soil, plant (roots, trunk, vegetative apparatus and

production) harvest, pest harvest and management, "quality", "typicality" and other innovations

in product and process], on communication and marketing, and in addition to them, it was

possible for the Veneto and Friuli-Venezia Giulia , and not only overcome the problems caused by

climate change.

Therefore these positive results are encouraging for the future, not only for these and similar areas

but also for those to the southern and to the northern grape growing areas.




VIVA Sustainable Wine: the Italian label on sustainability performances

C. Corbo

1, F. Valentino

2, E. Capri

1

1OPERA Research Center on Sustainable Development in Agriculture – Università Cattolica

del Sacro Cuore, Piacenza Italy 2Ministero dell'Ambiente e della Tutela del Territorio e del Mare, Roma, Italy

In 2011 the Italian Ministry for the Environment, Land and Sea has launched the National pilot

project VIVA "Sustainable Wine". The purpose of the project is to improve the performance of

sustainability in vineyards and wine production through the development of a certification system,

based on the use of four indicators: Air, Water, Territory and Vineyard.

The indicators evaluates the impact of wine production taking into account the three pillars of

sustainability (Corbo et al., 2014). “Air” evaluates the greenhouse gas emissions directly and

indirectly related to the life cycle of a product (CFP) or to an organization (GHGI) (Lamastra et

al., 2012). “Water” reveals the total volume of fresh consumed and polluted water both referred to

company activities or to the production of a wine bottle (Lamastra et al., 2015). “Vineyard” takes

into account the agronomic management practices in the vineyards (use of pesticides and their

effect on water bodies and soils, soil management practices, fertility and biodiversity issues

(Maurino et al., 2013). “Territory” is a kit of qualitative and quantitative indicators, built in order

to evaluate the actions undertaken by the companies and their impact on the territory.

The results of the sustainability assessment are communicated to the consumers with a label

(available through internet or smartphone/tablet) that summarizes the results and improvements,

in terms of sustainability, achieved by the wine companies.

The pilot phase, conducted with the scientific collaboration of the Research Centre for Sustainable

Agriculture OPERA, involved a number of major Italian wineries, which were selected based on

their geographical location and the products they produce. This phase was completed in 2014 and

led to the definition of technical specifications for sustainable wine production, that now serve as

a reference for companies who want to achieve the validation foreseen by the project.

In the poster presentation, the results of companies’ sustainability assessment are presented and

discussed, as well as the improvements in terms of sustainability performances achieved thanks to

their participation in the VIVA Project.

References :

Corbo C., Lamastra L., Capri E., 2014. From Environmental to Sustainability Programs: A

Review of Sustainability Initiatives in the Italian Wine Sector. Sustainability, 6(4), 2133-2159.

Lamastra L., Capri E., 2012. Calcolo dell’impronta carbonica in viticoltura. L’Informatore

Agrario, 30, 43.

Lamastra L., Suciu N.A., Novelli E., Trevisan M., 2014. A new approach to assessing the water

footprint of wine: An Italian case study. Science of the Total Environment, 490, 748–75.

Maurino M., Balderacchi M., Di Guardo A., Monchiero M., 2013. Come si calcola l’impatto del

vigneto sull’ambiente. L’Informatore Agrario, 39, 45-47.

www.viticolturasostenibile.org

http://www.viticolturasostenibile.org/



Building the stakeholder platform to foster sustainability in the wine sector

C. Corbo

1, F. Valentino

2 , E. Capri

1 , S. Stefanucci

3

1OPERA Research Center on Sustainable Development in Agriculture – Università Cattolica

del Sacro Cuore, Piacenza Italy 2Ministero dell'Ambiente e della Tutela del Territorio e del Mare, Roma, Italy

3Unione Italiana Vini, Verona, Italy

Consultation, coordination and collaboration are essential to achieve sustainability. Sharing

existing knowledge and disseminating new technical solutions, indeed, are considered essential to

foster synergies and cooperation between the various actors in the wine value chain, in order to

ensure that all the players can have the tools to improve the environmental, economic and social

sustainability of wine production (Capri et al., 2014).

The neonate WOS - Wine Observatory Sustainability (www.wineobservatorysustainability.eu) - is

an international no-profit web platform on sustainable wine, aiming to foster sustainability in the

wine sector through cooperation and coordination between the various actors in the wine value

chain. In particular, WOS aims:

- to create an international network and to build a base for useful synergies, involving all people

and main organizations working on the issue of sustainable development of the wine sector;

- to share and combine experiences, programs, initiatives from different countries and actors

about sustainability of the wine value chain;

- to sensitive to the topic all the players in the wine chain (including the consumers), sharing

events, documents, training and initiatives on the topic of sustainability in the wine sector;

- to promote a dynamic environment where web users are actively involved in its development.

In order to achieve these objectives, the platform include and connect the most relevant practical

tools, recognized authorities and best practices. The platform address all the players in the wine

value chain, working and promoting sustainability through specific projects (at whatever step of

the chain, including consumers). WOS activity is constantly supervised by committees of experts.

First set of materials have been included looking at the available state of the art literature

(Pomarici et al., 2014; Corbo et al., 2014).

References

Capri E., Jordan A., Lewis S., Pretorius I., Scienza A., Marchis A., Stefanucci S., Walker N.,

Camilleri C., 2014. Vision on the sustainable future of our wine and vineyards. SIMEI

International congress on wine sustainability.

Corbo C., Lamastra L., Capri E., 2014. From Environmental to Sustainability Programs: A

Review of Sustainability Initiatives in the Italian Wine Sector. Sustainability, 6(4), 2133-2159.

Pomarici E., Corbo C., Vecchi R., Capri E., 2014. Percorsi per la sostenibilità della produzione

vitivinicola in Italia: Esperienze e prospettive di realizzazione di un modello italiano per la

sostenibilità del vino. Unione Italiana Vini.

http://www.wineobservatorysustainability.eu



Perception of climate variability and vineyards vulnerability in a coastal

wine region in South America

M. Fourment

1,2, M. Ferrer

1, G. Barbeau

3, H. Quénol

2

1Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay

2UMR6554 LETG CNRS, Université Rennes2, Rennes, France

3UVV INRA Angers, Beaucouzé, France

Over a wine region, knowledge of climate variability is primordial to contribute adaptation issues

to climate change. In the wine region of southern Uruguay, the spatial variability of temperature is

stronger than temporal variability, due to the influence of La Plata River and different topographic

situations. This study had three hypotheses: 1) wine growers of southern Uruguay know the local

temperature variability; 2) grapevine cultural practices were changed over the last 20 years and

part of it was in function of local and temporal variability of climate; and 3) the evolution of those

practices could lead to determine the vulnerability of farming systems to local and regional

variability. Interviews were carried out using the method developed in TERADCLIM Project to

evaluate wine growers perception and adaptation of climate change. The main results showed a

clear perception of climate variability for the wine growers, especially of annual variability.

Extreme climate events occurred the last years were highlighted in the interviews (precipitations

with strong winds, hails), from which 71% considered an increase of frequency of those events.

Soil management was the principal practice that was modified over the studied years. The

intensity of tillage had evolved from high intensity to minimal tillage and a decrease of herbicides

utilization. 43% coincided that the evolution of some viticulture practices could be due to climate.

To determine the vulnerability of the farming systems over the wine region, we elaborate matrices

of sensitivity and adaptive capacity from the interviews results. Matrices of sensitivity, considered

by a biophysical origin, were elaborated with internal and external factors from the wine grower

point of view. Internal factors were variety, pruning system, canopy management, soil

management, grape thinning, training system and grape final destination (table wine or high

quality wine). External factors were soil type, topography and final price of grape. The matrices of

adaptive capacity of wine growers were related to access to technical advice, communication and

services, possibility of grouping, technology adoption and type of exploitation (familiar or not).

To decrease vulnerability of grapevine, type and date of pruning (to reduce frost risk), canopy

management (to modify micro-climate) and soil management (in high water availability

situations) were highlighted. When adaptive capacity of wine growers was lower, grouping with

others wine producers, including for technical assistance, led to decrease vulnerability too. Those

results are useful to identifying the savoir-faire of wine growers, who are able to adapt constantly

their practices to the local annual climate variability, and thus, provide adaptation measures to

climate change.



The viticulture and oenology in XXI century, the value of landscape

X. Aranda

1, P. Arús

1, A. Batlle

1, C. Biel

1, C. Calvet

1, A. Camprubí

1, F. de Herralde

1,

X.L. Elorduy2, I. Funes

1, J.A. Garcia-Regueiro

1, J. Garcia Mas

1, J.M. Gil

1, J. Girona

1,

B. Grau1, W. Howad

1, A. Laviña

1, J. Luque

1, J. Marsal

1, F.X. Prenafeta

1, A. Puig

1, J. Rufat

1,

R. Savé1, N. Teixidó

1, J. Usall

1.

1IRTA, Caldes de Montbui, Spain

2INCAVI, Vilafranca del Penedès, Spain

Viticulture, beyond the primary production, provides valuable ecosystem services; from

supporting services, through the easily documented provisioning service, to the important

regulating and cultural services (Clothier et al., 2013). The wider landscape scale of terroir also

needs to be considered. This involves the productivity and sustainability of the agro-forestry

surface of the catchment areas that are needed to supply external resources of water, energy and

nutrients, and to consider the chemical composition of wastewaters from different origin, along

with the emissions and sequestration of greenhouse effect gases. Increasingly, this will be the way

of sustainable production in the Twenty First Century. It will become increasingly evident when

viticulture is placed at the landscape level, and will require understanding landscape ecology as a

representation of the intricate network of regulating services and the biodiversity status of

landscapes. This ecosystem services approach, along with the knowledge of the provisioning

services of high quality of wines, compiled during XX century, provides an assessment of the

valuable economic benefits. However, in the XXI century, our society and viticulture must change

to become a new and important source of opportunities for related sectors and the whole

community. Viticulture must become eco-efficient in the use of resources and sustainable. It must

maintain and leave a heritage and conservation of resources for the future, because resources are

scarce and finite.

IRTA proposal for viticulture in XXI century, affected for climate and global changes, is focused

in technological options that analyze how farming management concepts, practices and

technologies, including plant breeding, could enable sustainable intensification of crop

production, with the aim to increase grape production and support wine supply. The aim of

sustainable intensification is to produce more production from the same area of land while

reducing the environmental impacts, under social and economic beneficial conditions. This

proposal addresses agriculture in developing countries as well as in industrialized countries

(Europe), small-scale and large-scale farming, extensive and intensive agricultural production

systems, and low and high tech production practices, can provide adaptive and mitigation

strategies for this crop, for this important landscape in Europe.


AUTHORS INDEX


Name Page Name Page A Brouard E. 89bis

Abbal P. 106 Brugière F. 117

Acevedo-Opazo C. 83 Brunori E. 46

Agam N. 114 Burgos S. 27

Ageorges A. 84 Butterlin G. 74

Agüero C. 79

Aguirreolea J. 81 C

Ahmed D. 73 Cabas F. 133

Aigrain P. 117 Cáceres-Mella A. 68, 69

Aizpurua A. 41 Caffarra A. 37, 49

Albasha R. 67 Caldeira I.M. 70

Albertin W. 101 Calonnec A. 47

Allamy L. 45 Calvet C. 137

Allegro G. 110 Campbell J. 62

Alvarez Gei S. 131 Camprubí A. 137

Alves F. 95 Campus D. 111

Amigues J.P. 5 Cancela J.J. 70

Aranda X. 38, 137 Cantat O. 25

Araya-Alman M. 83 Capri E. 134, 135

Arrizabalaga M. 54 Caquet T. 5

Arús P. 137 Carbonneau A. 106

Cargnello G. 106, 133

B Carlos C. 77

Bálo B. 56 Castany C. 108

Barbeau G. 21, 76, 122, 132, 136 Castel T. 37

Barlow S. 89 Caubel J. 20

Barrieu F. 86 Cavallini E. 87

Bartholy J. 56 Cecchetto G. 133

Batlle A. 137 Chalvet-Monfray K. 5

Bellincontro A. 72 Charlier L. 124

Berger G. 73 Charon J. 80

Bertrand Y. 73 Chatbanyong R. 60

Bertuzzo P. 133 Chevalier F. 27

Biasi R. 46 Cheynier V. 84

Biel C. 38, 137 Christophe A. 61

Bigard A. 60 Chuine I. 20

Bindi M. 52 Claverol S. 80

Bisztray Gy. 56 Colucci E. 110

Bois B. 20, 37, 47 Conceição M.A.F. 57

Bonghi C. 107 Confalonieri R. 52

Bonnardot V. 19, 27 Considine J.A. 63, 88

Bonneu M. 80 Considine M.J. 63, 88

Bordenave L. 82 Cook B.I. 93

Bortolossi A. 133 Corbo C. 134, 135

Botton A. 107 Corgne S. 53

Boulet J.C. 84 Cortesi N. 22, 48

Boyer J. 127 Cotea V.V. 28

Braidot E. 75 Coulon-Leroy C. 131

Bréda N. 5 Coupel-Ledru A. 61, 98

Bretonnière P.A. 48 Čurin Šerbec V. 75


Name Page Name Page D Ferrer M. 136

Dai Z. 42, 89bis, 98 Filippetti I. 110

Dal Santo S. 87 Filippi A. 75

Damasco G. 111 Flutre T. 73

Darriet P. 45, 50, 58, 78, 89bis, 92, Fodor A. 73

128 Fontes N. 26

de Herralde F. 38, 137 Forget D. 78

de Rességuier L. 21, 25, 29, 76 Forrestel E.J. 93

de Revel G. 40 Fortier E. 27

Debaeke P. 5 Fortún T. 54

Decroocq S. 82 Foss C. J. 120

Del Piano D. 111 Fougere M.-A. 108

Delay E. 49, 96 Fourment M. 136

Deliere L. 65 Foyer C.H. 88

Delmas C.E.L. 65 Fraga J. 79

Delmotte F. 65 Fraga H. 33

Delpuech X. 103 Franzin G. 133

Delrot S. 42, 50, 58, 64, 80, 81, 82, Fuentes Espinoza A. 128

86, 89bis, 98, 108 Fuentes S. 89

Demelas L. 111 Funes I. 38, 137

Dequin S. 101

Destrac-Irvine A. 108 G

Di Gennaro S.F. 113 Gaiotto M. 133

Di Giacomo S. 133 Gambetta G. 42, 71

Diago M.P. 72, 100 García J. 112

Djafour S. 109 Garcia de Cortazar-Atauri I. 20, 33, 76, 93, 98

Doligez A. 60, 61, 73 Garcia Mas J. 137

Donatelli M. 52 Garcia-Regueiro J.A. 137

Dorling S. 23 Gary C. 94

Doublas-Reyes F. J. 22, 48 Gascuel C. 5

Drappier J. 50, 58 Gaudin R. 94

Duchêne E. 20, 74, 98, 99 Gautier J. 117, 123

Dufourcq T. 103 Gelly M. 109

Duputel M. 109 Gendig E. 19

Geny-Denis L. 50, 58

E Ghidossi R. 58

Echenique M.C. 132 Gil J. M. 116, 137

Edwards E. J. 36, 51 Girardi F. 107

Elorduy X.L. 137 Giraud-Héraud E. 126, 128

Escudier J.L. 101 Girona J. 137

Evangelista S.R.M. 57 Gomès E. 80, 81, 89bis

Eveno M. 25 Gonçalves B. 95

Gonçalves I. 77

F Gonzalez N. 22, 48

Fait A. 114 Goupil W. 78

Fandiño M. 70 Graça A. 26

Farci M. 111 Grau B. 38, 137

Fasoli M. 87 Graviano O. 111

Fermaud M. 83 Guillaumie S. 58, 89bis

Ferreira H. 95 Guzzo F. 87


Name Page Name Page H Luchaire N. 60

Hannin H. 117 Lunardelli M. 133

Herderich M. 58 Lunardelli R. 133

Hilbert G. 54, 80, 81, 89bis Lunardelli S. 133

Hofmann M. 35 Lunn J. 80

Hofmann R.W. 104 Luque J. 137

Howad W. 137 Lusson A. 78

Howell K. 89

Hugalde I. 79 M

Malheiro A. C. 33

I Manconi F. 111

Inglis D. 118 Marangon M. 120

Irigoyen J.J. 54 Marchand S. 40

Irimia L.M. 28 Marguerit E. 64, 86, 98

Marongiu G. 111

J Marsal J. 137

Jaegli N. 74 Martínez de Toda F. 112

Joao S. 95 Martínez-Lüscher J. 81

Jones G.V. 17, 43 Martins J. 26

Marullo P. 101

K Masneuf-Pomarède I. 101

Kante E. 133 Matese A. 113

Kappel C. 80 Maurig D. 133

Katurji M. 19 McElrone A. 79

Kemp B. 23 McLachlan A.R.G. 104

Kennedy J. 62 Meitha K. 63

Kilmister R. 36, 51 Menotti G. 133

Merlin I. 71

L Meudec E. 84

Lacombe T. 73, 93 Michielin M. 133

Ladányi M. 56 Mille B. 103

Lagacherie P. 94 Miranda C. 102, 113

Launay A. 73 Morais A. 77

Laviña A. 137 Morales F. 41, 54, 81

Le Cunff L. 60, 73, 84 Moreno Y. 83

Le Menn N. 40 Moriondo M. 52

Le Roux R. 19, 20, 21, 29 Mota M. 27

Lebon E. 61, 67, 98 Muller B. 60

Lecourieux D. 60, 80

Lecourieux F. 60, 80 N

Leibar U. 41 Nassuth A. 118

Leolini L. 52 Neethling E. 21, 76, 122

Lipari M. 133 Negri S. 87

Loidi M. 102 Nesbitt A. 23

Lolas M. 83 Nguyen A.V. 79

Lopez F. 103 Nicholas K.A. 93

Loussert P. 53 Nicolas S. 73

Lovicu G. 111 Noble J. 101

Luchaire N. 60


Name Page Name Page O R

Ojeda H. 60, 131 Rabagliato R. 50, 58

Oliveira I. 95 Radikon R. 133

Ollat N. 20, 42, 64, 82, 86, 98,117 Rajčević U. 75

Ortega A. 53 Ramos M.C. 43, 55

Oyarzun M. 54 Ratna J. 63

Redon P. 50

P Ravazzolo L. 107

Pali L. 133 Renaud C. 80, 89bis

Pañitrur-De la Fuente C. 83 Reshef N. 114

Parker A. K. 19, 20, 76, 93, 98, 104 Rey B.J. 70

Parovel E. 133 Reynolds A. 118

Pascual D. 38 Riaz S. 79

Pascual I. 41, 54, 81 Ribalta-Pizarro C. 85

Passamonti S. 75 Rienth M. 60

Pastenes C. 68, 69, 85 Rochard J. 129

Pastore C. 110 Rogerson F. 95

Patriche C.V. 28 Romero N. 79

Peccoux A. 86, 98 Romieu C. 60, 73

Pecile M. 133 Roques M. 73, 84

Pellegrino A. 60 Rossdeutsch L. 86

Perelló M.-C 40 Roudet J. 83

Pérès S. 126, 128 Royo J.B. 102, 113

Péros J.-P. 73, 84 Rufat J. 137

Petitjean T. 122 Ruperti B. 107

Petrie P. R. 34, 58

Petrussa E. 75 S

Pezzotti M. 87 Sablayrolles J.M. 92, 101

Picard M. 40 Sadras V. O. 34

Pichery M.-C. 119 Sagarna I. 102

Pickering G. 118, 125 Salmon J.M. 101

Pickering K. 125 Salvati L. 46

Pieri P. 50, 58, 80, 98 Sámson G. 56

Pillet J. 60, 80 Sánchez-Díaz M. 81

Pinasseau L. 84 Santesteban H. 54

Piou C. 96 Santesteban L.G. 102, 113

Piras F. 111 Santos J. A. 33

Pitacco A. 107 Santos P. 77

Pla E. 38 Savé R. 38, 137

Planchon O. 25, 27 Scaloni A. 75

Pleshaj S. 133 Scheidweiler M. 72

Plummer R. 125 Schneider R. 103

Pongrácz R. 56 Scholasch T. 62

Pons A. 45, 128 Schulmann T. 19

Prenafeta F.X. 137 Schultz H. R. 35, 91

Puig A. 137 Secci S. 111

Serafin E. 133

Q Sgubin G. 31

Quaggiotti S. 107 Shahood R. 60

Quénol H. 19, 20, 21, 25, 27, 28, 29, Shaw T. 118, 125

49, 53, 76, 96, 122, 136 Silvestre J.M. 70


Name Page Name Page Simonneau T. 61, 98 V

Skerlj A. 133 Valdés-Gómez H. 83

Soares R. 77 Valentini G. 110

Soltanzadeh I. 19 Valentino F. 134, 135

Sommerer N. 84 Vallverdù-Queralt A. 84

Soret A. 22, 48 van der Merwe G. 118

Soussana J.F. 5 van Leeuwen C. 20, 21, 25, 29, 40, 64, 76,

Southey T. O. 121 92, 93, 98, 104, 108

Stefanucci S. 135 Veiga R. 95

Steiner L. 27 Velappan Y. 63, 88

Stoll M. 39, 72 Verbaere A. 84

Stoop P. 109 Verdugo-Vásquez N. 83

Strever A. E. 121 Vergara D. 108

Sturman A. 19 Vila H. 79

Surry Y. 126 Vilanova M. 70

Swingedouw D. 31 Villalobos L. 68, 69, 85

Symoneaux R. 131 Vinatier F. 94

Szobonya N. 56 Vivin P. 42, 98

T W

Talaverano M.I. 69 Walbaum N. 114

Tandonnet J.-P. 82 Walker A. 79

Tardáguila J. 72, 100 Witkowsky F. 132

Teil G. 97 Wohlfahrt Y. 39

Teixeira B. 77 Wolkovich E.M. 93

Teixidó N. 137 Wu J. 50, 58

Tempère S. 128

Teo G. 133 Y

Terrier N. 84 Yuste J. 43

Texier D. 108

Thibon C. 50, 58, 78, 89bis Z

This P. 60, 73 Zawar-Reza P. 19

Tonielli M-L. 133 Zenoni S. 87

Tonietto J. 57 Zhang L. 71

Tornielli G.B. 87 Zhang P. 89

Torralba V. 22 Zheng W. 112

Torregrosa L. 60 Zhu J. 42, 98

Touzard J.M. 5, 117, 127 Zirari N. 108

Treeby M. 36, 51 Zito S. 37, 47

Trevisan S. 107 Zorzi R. 133

Trossat-Magnin C. 89bis

Trought M. 19,104

U

Ugaglia A. A. 126

Unamunzaga O. 41

Unwin D. 36, 51

Usall J. 137

Thank to all the partners who graciously provided the

wines for this conference

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Château La Conseillante

Château Lagrange

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